[CentOS-docs] notify emails from wiki.centos.org
On Fri, 10 Jul 2015, Karanbir Singh wrote: making a few edits i just noticed that a lot of emails get sent out on every edit on wiki.c.o - this isnt a problem as such, but i wonder if its better for more people to use an rss feed ? I read each commit and have for many years, as an anti-spam protection, as well as checking editorial content. It is a 'push' approach, presently end user configurable, and lightweight (run a diff, and toss it into email) RSS is a 'pull' media, and so 'loadier' on an end user having to click a webbish form, send a new request tot he server, wait for content to be marshalled, and returned. Much heavier, and not well suited to a 'push' workflow Not a good idea, as I see it, to move to just one approach, when the incumbent is presently used, in the code, and 'just works'. If more outbound email delivery capacity is needed, that is out of scope from a wiki issue, of course -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] CentOS 7 compose process
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Hash: SHA1
On Thu, 30 Oct 2014, Steven Falco wrote:
I asked on the -devel list, and the suggestion was to use this
list instead.
Well, not exactly. You were told:
You're certainly welcome to create documentation. If you
request access on the -docs list with your proposal, the
people who oversee wiki access will work with you.
That is, you were invited to write documentation
Everyone wants to make this harder than it is [and not read
the syslinux (isolinux) documentation (... long ago I built
some custom install ISOs for a course I ran), and will not
experiment] And no-one writes ...
http://www.owlriver.com/issa/mk-grub-iso.sh.text
http://www.owlriver.com/issa/isolinux-howto.text
The initrd has what you are interested in changing (perhaps)
to drop in a ks.cfg ... the rest -- can all be copied out of a
loop-mounted existing centos CD and dumped in the relevant
directory (./isolinux/), as part of the phase for the mkisofs
step
cd to a directory with an ISO in it
mkdir loop
sudo mount -o loop CentOS-7.0-1406-x86_64-Minimal.iso loop/
cd loop/
[herrold@centos-6 loop]$ ls -l isolinux/ | \
awk {'print $5\t$9'}
2048boot.cat
84 boot.msg
281 grub.conf
34935964initrd.img
24576 isolinux.bin
3032isolinux.cfg
176500 memtest
186 splash.png
2438TRANS.TBL
33127644upgrade.img
155792 vesamenu.c32
4902656 vmlinuz
There is a bit more if EFI support is wanted, but again, read
and experiment
- -- Russ herrold
- --
end
==
.-- -... ---.. ... -.- -.--
Copyright (C) 2014 R P Herrold
herr...@owlriver.com
My words are not deathless prose,
but they are mine.
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[CentOS-virt] vTPM manager for Xen
On Tue, 23 Sep 2014, Jordan wrote: http://xenbits.xen.org/docs/unstable/misc/vtpm.txt What I cannot find is the vTPM manager that distributes vTpms to domains. The other places to read are: 1. the primary site at Berlios (this has of course gone dark) http://tpm-emulator.berlios.de/ I am not immediately sure where an external replacement now has moved to, but I have a mirror of that code about 2. the other two pieces of doco at the Xen site: http://xenbits.xen.org/docs/unstable/misc/vtpmmgr.txt http://xenbits.xen.org/docs/unstable/misc/vtpm-platforms.txt The flow of data is well described. What question is not clear from those diagrams The final v 2 spec for tpm has recently been released, although 1.2 is still in deployment. see the TPM site http://www.trustedcomputinggroup.org/ -- Russ herrold ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-docs] Request for access to wiki
-BEGIN PGP SIGNED MESSAGE- Hash: SHA1 On Thu, 23 Jan 2014, Yves Bellefeuille wrote: Karsten Wade kw...@redhat.com wrote: snip What's all this about SIGs, contributors, and committers? The CentOS Wiki didn't use to work that way. This is part of a piece I sent this to Karsten earlier today: Karsten: Speaking of which, do we have any writing standards for using the wiki? Anything to point new contributors to? Historically, to get rights on the CentOS wiki, one had to have a: - have subscribed to the -docs ML - registered with CamelCase wikiname - optionally set up a homepage (doing so required asking for limited rights to do so in that sub-space on the -docs ML) - discuss on the -docs ML, the intended content, optionally putting a preview below the personal homepage in the hierarchy - one point being it was not interesting to simply parrot RH doco, or replicate content elsewhere, but rather to document deviations between CentOS and RHEL as there were some deviation by design or by necessity: updater driven -- early days yum not RHN, artwork, license matters -- extract ends -- - -- Russ herrold -BEGIN PGP SIGNATURE- Version: GnuPG v2.0.14 (GNU/Linux) iEYEARECAAYFAlLhgTUACgkQMRh1QZtklkQWZgCfThzmJazc5+Wf37EBlefdxMUM rNYAoIRPeIR1zXoOuBH+ilCCrCZ2f4Yu =HDpP -END PGP SIGNATURE- ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-virt] Hot adding USB devices to guests at a fixed address
On Tue, 26 Nov 2013, Stephen Harris wrote:
I have a device I want a guest to see. I've configured the following:
And then in udev:
% cat /etc/udev/rules.d/90-owon.rules
ACTION==add, \
SUBSYSTEM==usb, \
SYSFS{idVendor}==5345, \
SYSFS{idProduct}==1234, \
RUN+=/usr/bin/virsh attach-device XP_VM1 /etc/libvirt/HotPlug/owon.xml
Now this works; I plug the device in and the guest sees it.
most USB persistent enumeration are done by the device serial
number, which should appear along with the Vendor and Product.
Can you expose that through the udev rules as well?
Does anyone know of a way of adding a device so that it's at a known fixed
address inside the guest?
seeking to 'nail it to' a fixed address is probably not the
right way to do it, as that is detection order dependant
-- Russ herrold
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[CentOS-virt] Traffic Accounting KVM vs Xen
On Thu, 15 Aug 2013, Robert Dinse wrote: I am getting to where we want to offer virtual servers for lease but to do so we need some method of measuring and/or limiting traffic to individual guests. I am wondering what others are using for this purpose? I know that you can look at traffic stats on the bridge on the host machine but that information is lost when the machine is rebooted. I'm wondering if there is any software that databases that information on an ongoing basis and does not lost information across reboots? At PMman [1], we sample all domU and each dom0, both Xen and KVM based, via libvirt methods every five minutes. We also keep snmp derived data, which are out of scope to your question. We use the virsh 'stat' commands ... nodecpustats nodememstats domblkstat domifstat dommemstat . Then, we stuff detail into a database. The use of the intermediate store of a database provides a 'looser' coupling' than blocking on other methods, so that our control interfaces do not get 'blocked' when things get SNAFU'd A sample insert looks like this for drive stats on a domU: //insert stats into db $_dbQuery = insert into vm_blk_stats set . date = now(), . vm_name = '.$_vm_name.', . vm_server = '.$_vm_server.', . vm_running_id = '.$vm_running_ids[$_vm_name].', . device_index = '.$_blk_index.', . device = '.$_blkdev.', . rd_req = '.$_blk_stats[$_blk_index]['rd_req'] .', . rd_bytes = '.$_blk_stats[$_blk_index]['rd_bytes'] .', . wr_req = '.$_blk_stats[$_blk_index]['wr_req'] .', . wr_bytes = '.$_blk_stats[$_blk_index]['wr_bytes'] .'; mysql_query($_dbQuery); and like this for the VM interfaces: $_dbQuery = insert into vm_if_stats set . date = now(), . vm_name = '.$_vm_name.', . vm_server = '.$_vm_server.', . vm_running_id = '.$vm_running_ids[$_vm_name].', . device_index = '.$_eth_index.', . device = '.$_ethdev.', . rx_bytes = '.$_eth_stats[$_eth_index]['rx_bytes'] .', . rx_packets = '.$_eth_stats[$_eth_index]['rx_packets'] .', . rx_errs = '.$_eth_stats[$_eth_index]['rx_errs'] .', . rx_drop = '.$_eth_stats[$_eth_index]['rx_drop'] .', . tx_bytes = '.$_eth_stats[$_eth_index]['tx_bytes'] .', . tx_packets = '.$_eth_stats[$_eth_index]['tx_packets'] .', . tx_errs = '.$_eth_stats[$_eth_index]['tx_errs'] .', . tx_drop = '.$_eth_stats[$_eth_index]['tx_drop'] .'; mysql_query($_dbQuery); The second is an insert for traffic in and out, per interface (which interfaces can 'move around' as to 'name' as to how one queries it out via virsh, as VM's come and go) We have had several tens of million rows active in those tables over time, but usually 'age them out' when we get north of 20 million into secondary summary tables to keep later query performance reasonable 'domifstat' is useful, because we see circumstances where a VM is seemingly active, but not moving any network traffic in or out (i.e., it has crashed). We use monitoring of traffic stats to detect problems pre-emptively (i.e., before the customer calls). We had an instance of this earlier this week after an attack on an httpd of a client VM, which we identified. I got an external monitoring report,and looked in. On the virsh console, it was reporting OOM problems Second question, what are the advantaged and disadvantages of KVM verses Xen? I played with Xen back when I had CentOS 5, but find KVM easier to work with and not much difference in performance. We run, offer, and support both, both externally and in our developmental labs, but Xen is not the future for people following Red Hat, nothwithstanding the CentOS efforts. Our new development effort is KVM focussed -- Russ herrold [1] http://www.pmman.com/ ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-docs] BenHosmer's node.js proposal; was: Wiki Contribution Request
On Tue, 26 Feb 2013, Ben Hosmer wrote: Username: BenHosmer Title: Building an RPM from Scratch Placement: http://wiki.centos.org/PackageManagement/Rpm I went through the process of building and documenting how to build an RPM from scratch using node.js as an example. I'd like to contribute this guide back to the wiki please. One problem with using 'node.js' is the module complexity -- also, it is upstream, wending its way through http://pastebin.centos.org/1423/ Could you please place a proposed copy under your personal space: http://wiki.centos.org/BenHosmer so we might discuss it? -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] Not Installing Properly
On Thu, 10 Jan 2013, sumit gupta wrote: I tried installing Cent-OS 6.3 in my laptop. Its not getting installed normally, i've to install it using basic graphics drivers. post installation my laptop is running hot and when i am trying to install ATI graphix card drivers,its getting stuck at the boot screen. Please help in installing it in my machine. My laptop is HP Pavillion g series. and what documentation that centos ships is wrong? This is not a support venue -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] Translation of centos-art.sh script (Round 2)
On Sun, 23 Sep 2012, Alain Reguera Delgado wrote: Russ, the texinfo-tex, gettext, vim-enhanced and sudo packages were already added to prepare functionality so they should be installed once the prepare functionality completes its duty. thank you -- setting up a fresh test box - Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] Translation of centos-art.sh script (Round 2)
On Mon, 24 Sep 2012, Christoph Galuschka wrote:
already added to prepare functionality so they should be
installed once the prepare functionality completes its
duty.
working from the outlines at:
https://projects.centos.org/trac/artwork
- and -
http://wiki.centos.org/ArtWork (intermittently today)
testing, I seem to get a forkbomb exhausting all process
handles, two times running ... I will look into this further
[artwork@centos-art ~]$ \
Projects/CentOS/trunk/Scripts/Bash/centos-art.sh prepare
...
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: retry: No child processes
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: retry: No child processes
...
[then it starts displaying content again for a while]
unset -f $FUNCDEF;
done
}
declare -fx cli_unsetFunctions
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: retry: No child processes
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: retry: No child processes
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: retry: No child processes
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: retry: No child processes
/home/artwork/artwork/trunk/Scripts/Bash/Functions/Commons/cli.sh:
fork: Resource temporarily unavailable
cli ()
{
local CLI_FUNCNAME='';
local CLI_FUNCDIRNAM='';
local CLI_FUNCSCRIPT='';
local ARGUMENTS='';
...
[and then back into the forkbomb until I ^c it]
The wiki was not responding intermittently, as I was testing,
so I could not check the edits to revert:
The following error was encountered while trying to retrieve
the URL: http://wiki.centos.org/ArtWork
Connection to 72.232.194.162 failed.
I will try again with yet another fresh deploy tomorrow
-- Russ herrold
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[CentOS-docs] strange error noise ...
On Thu, 13 Sep 2012, Alain Reguera Delgado wrote: echo $MESSAGE /dev/stderr Yes. These are error messages. Where else does they should go to but the standard error output? Isn't it the usual way of printing error messages? no: echo $MESSAGE 12 is the usual way, so that it follows the stderr file handle assigned to that sub-shell, rather than (as here in your approach) trying to write directly to a device to which it does not have rights For some reason are you running the whole script through `sudo'? no -- I 'su -' 'd down to an end user account from root to run the script. No console login on that box message telling you that, so you can fix the problem. If we don't do such printing finding errors would be even harder, don't you think? I am not against error logging, but the unusual way it is attempted, in view of the Unix and CentOS rights model as to selected devices -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] Details on centos-art.sh required packages
On Thu, 13 Sep 2012, Alain Reguera Delgado wrote: Could you move the following information 'remove' perhaps? The centos-art.sh preparation process is being documented at `trunk/Manuals/Tcar-ug' directory, specifically in the `trunk/Manuals/Tcar-ug/Scripts/Bash/prepare.docbook' file. I lack the requested commit right to push the change into the svn. Is the need for (installation of) 'texinfo-tex' now present in the script or that documentation? -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] following the artwork thread, there appears to be an error at step 4.2 of the wiki article
at: wiki.centos.org/ArtWork I set up a machine to test at step: 4.2, it states: 4.2. Configure Your Workstation ... To download your working copy execute the following command: svn co https://projects.centos.org/svn/artwork ~/ This command will create your working copy inside your home directory, specifically in a directory named artwork. quote ends This appears to build a CO at the CWD, and not in a created sub-directory called ./artwork/ as the outline states Perhaps it should read: cd mkdir artwork svn co https://projects.centos.org/svn/artwork \ ~/artwork so that step 4.3 is correct ?? [artwork@vm178231203 ~]$ cd [artwork@vm178231203 ~]$ pwd /home/artwork [artwork@vm178231203 ~]$ ls -al ~/artwork/trunk/Scripts/Bash/centos-art.sh -rwxrwxr-x. 1 artwork artwork 2772 Sep 10 17:18 /home/artwork/artwork/trunk/Scripts/Bash/centos-art.sh [artwork@vm178231203 ~]$ -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] actually, getting a hang there ...
$ bash -x ~/artwork/trunk/Scripts/Bash/centos-art.sh prepare ... ++ echo prepare + ARG=prepare + ARGUMENTS=' '\''prepare'\''' + [[ ! -n prepare ]] + [[ ! prepare =~ \^\[\[:alpha:]] ]] + exec /home/artwork/artwork/trunk/Scripts/Bash/centos-art.sh help ... just hangs here -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] CentOS Wiki Howto documentation contribution
Luc Lalonde wrote: I would like to add an article to your documentation wiki: - CentOS 6 as a Time Machine server for Mountain Lion (Howtos, Misc, Time Machine Server) Here's my wiki informations: Username: LucLalonde Hi, Luc, I have set up a blank 'homepage', with the appropriate ACL for you to amend as you see fit at: http://wiki.centos.org/LucLalonde ** and ** you can add content 'underneath that URL, as in: http://wiki.centos.org/LucLalonde/TimeMachine Could you please post a preview there, and let the list know when to look in on it? Thank you -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] Centos Wiki HomePage Access Part Duex
On Sat, 21 Jul 2012, Alan Bartlett wrote: Sorry Bob, I have obviously failed. We really need Ralph, the wiki-Meister, to correctly set the ACL for that page. or to take look at a ACL on a homepage and to replicate it's ACL model Robert, I had added: #acl RobertLightfoot:read,write,revert Default to the top of your page, which is where the wiki software looks for ACL's, and that should enable: http://wiki.centos.org/RobertLightfoot to be editted by you, along with inheriting the general ACL wiki permissions scheme, when you are logged in, at: http://wiki.centos.org/RobertLightfoot?action=editeditor=text A log in, and your rights should also display the edit links at the top of the page -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] HowTos/InstallFromUSBkey was: Wiki improvement
On Sat, 21 Jul 2012, Ron Arts wrote: I found an error on the page http://wiki.centos.org/HowTos/InstallFromUSBkey, and I wanted to fix it, but appararently I need to follow this procedure. The error is you need 20mb on the USB VFAT partition in stead of 10mb for the latest CentOS 5.x releases. My wikiname is RonArts. edit applied, and Ron added to the ACL for that page -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] rename of EOL page needed
I've updated: http://wiki.centos.org/HowTos/EOLC3 which, of course no longer applies to just one major release I am unfamiliar with the process of pushing through a rename of a page, but I see copies of change notices with Ralph doing it from time to tome. May I request an assist here please? -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS-docs] rename of EOL page needed
On Fri, 2 Mar 2012, Akemi Yagi wrote: Perhaps, More Actions dropdown menu = select Rename Page ? heh ... done - R ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-virt] Has anyone been able to start a Fedora 16 VM in Xen PV?
On Mon, 9 Jan 2012, R P Herrold wrote: On Tue, 10 Jan 2012, Norman Gaywood wrote: https://bugzilla.redhat.com/show_bug.cgi?id=746602 (pygrub cannot start F16 PV guests (GPT partition) under Xen 4.1.1) why would one use GPT for a domU? seems like gross overkill ... following on myself, I moved a F15 box to F16 trivially just now at PMman, with grub2 in place and the full boat SELinux, running recovery backups, and so forth I understand the desire to do native installs of domU's, but if the goal is not to test the installer, but rather to have a F16 environment to run in, F16 is readily available, and it took what? a bit under a half an hour from a standing start to all done, not even pushing hard I'll be at Fedora's FudCon in Blacksburg this weekend, if anyone wants to stop up, say 'Hi, and try it themselves in the PMman environment, as I can clone and hand off a copy of that machine at will; I'll tear off a x64_64 box as well -- Russ herrold [log file is in reverse cronological sequence] 2012-01-10 04:07:09 Backup Management herr...@owlriver.com VM userbackup has been renamed: F16 post panel backup (120) 2012-01-10 04:06:36 Support Message herr...@owlriver.com Subject: post second backup herrold@2009-windows-7 ~/.ssh $ ssh -i f16 -l root 198.178.231.162 Last login: Tue Jan 10 09:04:19 2012 from cpe-75-180-54-15.columbus.res.rr.com [root@none ~]# date Tue Jan 10 09:06:17 EST 2012 [root@none ~]# T (1) 2012-01-10 04:06:01 VM State Change herr...@owlriver.com VM state has changed to Starting 2012-01-10 04:05:54 VM Management herr...@owlriver.com VM was issued a START command 2012-01-10 04:05:53 Backup Management herr...@owlriver.com VM backup is requesting the VM startup 2012-01-10 04:05:52 Backup Management herr...@owlriver.com User VM backup has completed: vm_54818_1326186306 2012-01-10 04:05:07 Backup Management herr...@owlriver.com User VM backup has been initiated: vm_54818_1326186306 2012-01-10 04:04:48 VM State Change herr...@owlriver.com VM state has changed to Stopping 2012-01-10 04:04:46 VM Management herr...@owlriver.com VM was issued a STOP command 2012-01-10 04:04:45 Backup Management herr...@owlriver.com VM backup is requesting the VM shutdown 2012-01-10 04:04:44 Backup Management herr...@owlriver.com VM backup has been ordered 2012-01-10 04:04:03 Backup Management herr...@owlriver.com VM userbackup has been renamed: F16 but pre-panel yum run (119) 2012-01-10 04:02:45 VM Management herr...@owlriver.com Yum update has been initiated on the VM: 75.180.54.15 2012-01-10 04:02:43 VM Management herr...@owlriver.com Yum was requested through the control panel: 75.180.54.15 2012-01-10 04:01:59 VM State Change herr...@owlriver.com VM state has changed to Starting 2012-01-10 04:01:52 VM Management herr...@owlriver.com VM was issued a START command 2012-01-10 04:01:51 Backup Management herr...@owlriver.com VM backup is requesting the VM startup 2012-01-10 04:01:50 Backup Management herr...@owlriver.com User VM backup has completed: vm_54818_1326185950 2012-01-10 03:59:11 Backup Management herr...@owlriver.com User VM backup has been initiated: vm_54818_1326185950 2012-01-10 03:58:52 VM State Change herr...@owlriver.com VM state has changed to Stopping 2012-01-10 03:58:50 VM Management herr...@owlriver.com VM was issued a STOP command 2012-01-10 03:58:49 Backup Management herr...@owlriver.com VM backup is requesting the VM shutdown 2012-01-10 03:58:43 Backup Management herr...@owlriver.com VM backup has been ordered 2012-01-10 03:57:56 VM Management herr...@owlriver.com VM friendly name has changed: F16 i386 2012-01-10 03:57:23 Support Message herr...@owlriver.com Subject: more of the fstab # /dev/xvda1 / ext4 defaults 1 1 /dev/xvda2 swap swap defaults 0 0 tmpfs /dev/shm tmpfs defaults T (2) 2012-01-10 03:57:03 Support Message herr...@owlriver.com Subject: fstab [root@none ~]# cat /etc/fstab # # /etc/fstab # Created by anaconda on Sun Oct 9 21:31:47 2011 # # Accessible filesystems, by reference, are maintained under '/dev/disk' # See man pages fstab(5), findfs(8), mount(8) and/or blkid(8) T (2) 2012-01-10 03:56:17 Support Message herr...@owlriver.com Subject: rest of the paste 20:10:09 UTC 2012 i686 i686 i386 GNU/Linux [root@none ~]# date Tue Jan 10 08:55:28 EST 2012 [root@none ~]# T (2) 2012-01-10 03:55:44 Support Message herr...@owlriver.com Subject: and we're back herrold@2009-windows-7 ~/.ssh $ ssh -i f16 -l root 198.178.231.162 Last login: Tue Jan 10 08:31:38 2012 from cpe-75-180-54-15.columbus.res.rr.com [root@none ~]# uname -a Linux none 3.1.7-1.fc16.i686.PAE #1 SMP Tue Jan 3 20:10: T (2) 2012-01-10 03:55:13 Support Message herr...@owlriver.com Subject: reboot delay [root@(none) ~]# reboot (from another box, watch it) [herrold@bronson rc.d]$ ping
[CentOS] Redhat vs centos vs ubuntu
On Thu, 10 Nov 2011, Craig White wrote: I just can't embrace installing an OS whose security updates have ... Then please leave -- your sustained venom and bile are not needed, wanted, nor useful here, let alone remotely on topic -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Redhat vs centos vs ubuntu
On Fri, 11 Nov 2011, Christopher Chan wrote: Oh, things have improved have they? Last I tried, you could not get d-i Please take this elsewhere -- it has nothing to do with centos -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Redhat vs centos vs ubuntu
On Thu, 10 Nov 2011, Craig White wrote: On Thu, 2011-11-10 at 23:49 -0500, R P Herrold wrote: Then please leave -- your sustained venom and bile are not needed, wanted, nor useful here, let alone remotely on topic what venom? what bile? For the record, I wasn't the one who brought up Ubuntu nor did I mention non-centos distributions --- take your cruft elsewhere ... this thread is over -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What happened to 6.1
On Wed, 2 Nov 2011, Les Mikesell wrote: I don't care in general, but dislike hypocrisy. If you are going to claim to be open source, it should work to rebuild. les ... go rent a forum of your own -- this has no centos aspect any more -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What happened to 6.1
On Fri, 21 Oct 2011, Johnny Hughes wrote: On 10/21/2011 12:20 PM, Les Mikesell wrote: On Fri, Oct 21, 2011 at 11:54 AM, Johnny Hughes joh...@centos.org wrote: They have created an optional channel in several of those groupings that is only accessible via RHN and they do not put those RPMS on any ISOs I've never quite understood how anything containing any GPL-covered code could have any redistribution/use restrictions added. The GPL, v2, only requires access to sources where one is providing binaries ... As Johnny noted, this subset of the binary content are not freely to 'all comers' from the upstream As a general rule, CentOS is happy to rebuild freely available sources from the upstream ... and the upstream is a 'good egg' in making stuff available. Anyone wanting more just has to cause the upstream to expose relevant sources in their enterprise portion of their public FTP tree What part of 'not providing access to binary content' is unclear? Trust me ... the Linux Foundation thinks it is OK, so we are SOL. And indeed, I sat in Eben Moglin's office and discussed this very topic, some years ago ... straight from the horse's mouth, so to speak -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What happened to 6.1
On Fri, 21 Oct 2011, Gary Greene wrote: Trust me ... the Linux Foundation thinks it is OK, so we are SOL. I'd rather get the opinion of the FSF (those whom wrote the license) instead of LF, as they don't matter as much, really. Feel free to approach whoever you wish on your own account ... but it is really a settled issue from a CentOS point of view -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Migrating CentOS 5 - 6: where to put /etc/inittab respawn scripts?
On Tue, 4 Oct 2011, Johnny Tan wrote: Like recent Ubuntus, C6 uses upstart in place of traditional Sys V init. Likely, you will want this in /etc/init/ -- note!, not the same as /etc/init.d/ I don't know WHAT you are looking at, if anything, but it is not a CentOS 6 install; 'upstart' is a non-starter for the future, and certainly not in CentOS' upstream's plans [root@centos6-32 ~]# rpm -qa sys\* sysvinit-tools-2.87-3.dsf.el6.i686 system-config-firewall-base-1.2.27-3.el6_0.2.noarch [root@centos6-32 ~]# cd /etc/init.d/ [root@centos6-32 init.d]# ls atd crond iptablesnetfsrsyslogsingle udev-post auditdfunctions killall network sandboxsnmpd cgconfig halt named rdiscsaslauthd snmptrapd cgred ip6tables netconsole restorecond sendmail sshd [root@centos6-32 init.d]# ls -al ../rc* -rwxr-xr-x. 1 root root 2617 Jun 25 00:07 ../rc -rwxr-xr-x. 1 root root 220 Jun 25 00:07 ../rc.local -rwxr-xr-x. 1 root root 19088 Jun 25 00:07 ../rc.sysinit ../rc0.d: total 8 drwxr-xr-x. 2 root root 4096 Oct 3 12:27 . drwxr-xr-x. 10 root root 4096 Aug 18 07:03 .. lrwxrwxrwx. 1 root root 13 Oct 3 12:02 K05atd - ../init.d/atd lrwxrwxrwx. 1 root root 19 Oct 3 12:02 K10saslauthd - ../init.d/saslauthd lrwxrwxrwx. 1 root root 14 Oct 3 12:02 K25sshd - ../init.d/sshd lrwxrwxrwx. 1 root root 18 Oct 3 12:02 K30sendmail - ../init.d/sendmail lrwxrwxrwx. 1 root root 20 Oct 3 12:02 K50netconsole - ../init.d/netconsole lrwxrwxrwx. 1 root root 15 Oct 3 12:02 K50snmpd - ../init.d/snmpd ... -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Wiki CR Repo Link Defective
On Thu, 22 Sep 2011, John R Pierce wrote: ok, not my best bug report. http://bugs.centos.org/view.php?id=5136 but I guess it will serve as a placeholder for clarifications. you know, if there is not a report, there is not a bug ;) I've addressed the documentation issue already facing end users in the wiki article that Always mentioned, and indeed, I'd encourage you to join the centos-docs mailing list and get a wiki UserId ... we use CamelCase FirstLast NameForms and that way you too can help contribute even more to CentOS with minimal barriers to entry ;) Thank you, and 'atta boy -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Wiki CR Repo Link Defective
On Wed, 21 Sep 2011, John R Pierce wrote: On 09/21/11 8:42 PM, Always Learning wrote: 5.7 has been released, obsoleting the 5.6/cr/ John or Always I am in a low bandwidth environment, and so cannot do this myself Plesae file a bug at: http://bugs.centos.org/ so that the release process checklist for point releases includes a formal item to take steps to prevent this repository state Thank you -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Wiki CR Repo Link Defective
On Wed, 21 Sep 2011, John R Pierce wrote: What state should it be in? should that file be referenced as http://mirror.centos.org/centos/5/cr/x86_64/RPMS/centos-release-cr.el5.centos.1.x86_64.rpm ? or should there be a new http://mirror.centos.org/centos/5.7/cr/x86_64/RPMS/centos-release-cr-5-7.el5.centos.1.x86_64.rpm generated with the new release ? The neeed to know the solution is less clear than the need just to capture into either package' centos-release' or centor-release-cr, if it exists, the fact that there is an issue, and optionally a link to the pipermail thread URL, or a but of a reminder of the fact that there is an issue when retiring CR Thank you -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Refocusing the list; was: centos product specification
On Sat, 17 Sep 2011, Always Learning wrote: I am unaware of ever making those comments ! Check your file copy of your email to me of 25 Aug. I won't engage in a battle of semantics with an anonymous troll To all: As a matter of logistics, we are putting some new permissions in place to permit the stewards of the CentOS resources to quell the flood of off topic matter. The protocol will probably be first a private word to repeated instigator of noise off the mailing list, and then a silent moderation of that person; there is also the capacity to close down further posts on a subject line in Mailman, and we may use that as well I considered and proposed a formal and public nomination and voting system but this was probably geeky technical overkill. Also it would have required material coding to get up and running, to address what is, in the end, simply sustained bad behaviour by a few serial offenders. We'll be trying what in already in Mailman first I'm not happy about this moderation, but as one of the other stewards said: some of these conversations are really getting out of hand, the level of OT isnt even funny anymore. People seem to have descended into a social chatter list attitude rather than something that is topical and meant to be a collection of people focused on a specific interest. I'm all for putting a mod flag on these guys, specially for the guys who have been on the list for a while and I am much more unhappy with the hijacking of the list for personal entertainment and trolling sport Thank you for bearing with us as we steer the list back to addressing CentOS usage specific matter -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] centos product specification
On Sat, 17 Sep 2011, Always Learning wrote: However, you can file a bug report against the website. What is the point in 'complaining' by filing a BUG report when it is conspicuously evident the existing web person(s) can not cope because they have insufficient time or have died or have withdrawn from an active Centos involvement. If there is no bug, there is no statement of a problem to slot and to consider how to resolve. This was the rule from before CentOS started, and remains the case. All bug filings are read by several reviewers. If a person is unhappy with how CentOS addresses matters and * needs * deterministic timeframes for answers, go buy a SLA. If unhappy with the project, leave and stop using its resources As to withdrawal from listening here, has it ever occurred that the sustained OT noise and disrespect of a resource freely provided is in part causative of the ill you whine about. It's just not worth the effort to wade through a cesspool day after day. Entropy wins again I understand from off list correspondence with you, 'Always', that you consider it relaxation and sport to troll here and 'stir the pot'. Most others see a post from you and deem it a major 'buzzkill', based on the complaints I get in email and in IRC Sad, as the tragedy of the commons, and the incessant shouting of a troll, and the insistence of a few of their right to always 'have the last word,' have, in part, sapped the life out of what was a vibrant project three and four years ago Ah, well, life goes on, and new greener pastures of fresh projects await over the hill into tomorrow -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] centos product specification
On Sat, 17 Sep 2011, Always Learning wrote: Can't see any new web site on the latter URL. I'm not a Flash user by choice. Perhaps the Centos web site should be simple, practical, helpful in preference to emulating the very latest presentation gimmicks ? A larger font size will be useful for most people over 40 years of age. yeah -- fiddling with websites is a major priority, compared to, say, issuing a update that, frankly, was flawless on several hundred machines I've run the 5.7 bump on. While I wish QA could happen faster, some interesting and picky corner cases were spotted and never bit the millions of machines outside of QA test units Feel free to get involved. My work load is excessive and will be so for probably another 6 to 12 months and I have told KB I'm willing to organise some Centos events. I what a crock -- go cry elsewhere, troll I suppose I'll have to take up mailing list moderation issues again -- The person I needed to talk with is already away for the weekend, however. Fortunately we have already covered the topic of addressing your spam and have consensus as to how to proceed It is _so_ much more useful and rewarding to be a kindergarten playground monitor, than to do that pesky business of bug testing and package building ... not -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] ICMPv6 messages of type RS
On Tue, 6 Sep 2011, Helmut Drodofsky wrote: as described by CISCO in http://www.cisco.com/web/about/ac123/ac147/archived_issues/ipj_7-2/ipv6_autoconfig.html a router has to send ICMPv6 messages of type RS to the all-router multicast group: ff02::1 and ff02::2 for stateless autoconfiguration. How can I activate this sending in CentOS? I believe what you seek to enable is provided by the radvd, which is in the package of the same name. We had to provide configuration to get it working properly on our direct assignment ipv6 block at PMman, and to take steps to filter out 'non-authoritative' advertisements from clients running the daemon on domU instances, to get it working as we expected, handing out the proper route information We use this to do assignments both for our production networking, and also pass this through to client instances as a matter of default-enabled. All the admin for a client domU needs to do is comment out a couple of lines and it 'just works' For local network ipv6, simply enabling the 'avahi' services will suffice -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-docs] Contribute page
On Mon, 5 Sep 2011, Jerry Amundson wrote: The last sentence of http://wiki.centos.org/Contribute indicates a RHEL Beta is available, but this is not the case, currently. Maybe a more generic statement, and not specific to release number, could be in place here? If such a link to upstream can be found of course, as I seem unable to find such things tonight. Not even a fitting mailing list or group. Frustrating. There is no static upstream URL for such yeah -- wiki's rot. I've noted it before and it has fallen on deaf ears. Ahh, well. I'll fix it tomorrow when I get to a high bandwidth environment if someone does not beat me to it Thank you for the report -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS] CentOS 6 + XEN problem
On Fri, 2 Sep 2011, Rudi Ahlers wrote: Does anyone know what version of XEN works fine with CentOS 6? I installed XEN on a CentOS 6 server, as per these instructions: http://www.crc.id.au/xen-on-rhel6-scientific-linux-6-centos-6-howto/ and this issue about a third party writeup is not asked first in that venue, because ? and this issue about a virtualization issue is not asked on the specific virtualization list that Centos offers, because ? and this invasive, non-shipped and competing virtualization method (at the 6 level) and non-shipped and non-supported kernel is asked here, because ? Every time the ten or so people who treat this list like an 'anything goes' sewer post, tens of thousands of uses have to wade through the dross Every time the few here who cannot distinquish email and run untrimmed one line reply emails back and forth, over and over again, rather than using the CentOS provided IRC channels, tens of thousands of uses have to wade through the dross _Please_ be considerate, use the proper venue, brush and floss after meals, and research before posting ;) -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6 + XEN problem
On Fri, 2 Sep 2011, Digimer wrote: That was hardly called for. If you find a post off topic or uninteresting, just delete it. Either no one will reply or, if there is interest in the question, others will and the question will be decided to have value. wrong Seemingly you feel it is proper to burden tens of thousands of other people for personal pleasure ... others here display such an anti-social attitude as well The CentOS team, of which I am a part, are stewards of the resource that CentOS has grown into. I spoke publicly quite intentionally, after prior private request on other OT matter he persisted in raising, with a hope in sensitizing a serial off topic poster, from repeating such improper behaviour I won't 'suffer in silence' while people with muddy boots stomp around on the white carpet of my living room. If they won't respond to a private request, they get called out publicly We do not hesitate to kick spammers off from posting rights [and listen to the list members rant and ring the spam with poorly trimmed reposts for days afterward]. Frankly sustained OT content or trolling are spam at a lower data rate. I do not favor silent censorship, but we who value the list as a resource need to protect the asset somehow. Thus my post A fair reading of a month's archive and the seemingly infinite run-away threds readily shows the problem. The mail list is turning into the cesspool that main #centos IRC became when it was opened to OT and trolling. We need to do more than we have, all of us, who care about the project Feel free to review the initial poster's history on this list, and contribution, vs leaching ratio. I won't miss him a bit, and frankly the list will likely not be poorer for his absence either If you feel me wrong, feel free to start your own project and lists and prove me wrong -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Selinux extra packages and compiled apps
On Fri, 2 Sep 2011, John Doe wrote: I am in the process of trying (and convincing my colleagues) to learn/setup selinux as we switch to 6.0... Quick question: do I really need to install the setools/setroubleshoot packages or can I live without them? They want to install 80 packages (gnome stuff, gstreamer, gtk, tcl/tk...) and I would like to avoid installing all sort of graphical tools/libs on my lean servers. Can I just install setools-console by example? What does experiemntation with yum in a testing mode indicate with the packageset on your box - dependency trees have an effectively infinite number of permutations Is there a console only equivalent for setroubleshoot? If you know a must-have selinux for dummies like howto, apart from Redhat/Fedora doc or CentOS wiki What is wrong with the article at: http://wiki.centos.org/HowTos/SELinux as the timestamps will indicate another CentOS dev team member pointed out some deficiencies to me in it last night, and I was working on it for a couple of hours, and then a docs group member did style cleanups behind me It is not a completed work, but it is now relevant to CentOS 6 It also covers writing custom rules for local 'in house' applications I also know that the CentOS Planet RSS aggregator carried a rather long teaching rant I wrote a while back http://orcorc.blogspot.com/2010/12/ripping-out-safeties.html seeming right before I injured my ankle, from the datestamp -- probably a bad karhma reward from the internet dieties and sprirts for my attitidinal expectation that technical people do research before asking yeah -- I am just a sore head -- that's it -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6 + XEN problem
On Fri, 2 Sep 2011, Rudi Ahlers wrote: On Fri, Sep 2, 2011 at 6:02 PM, R - elists list...@abbacomm.net wrote: - rh Russ why don't you just discipline everyone? Cause no-one can stick to CentOS-only conversations in your righteous eyes. Rudi, I know it is confusing to you , as Robert Heller and Russ Herrold share the same intiials, but I have not used the work 'discipline' in this thread, and indeed, my attitude is one of fostering thoughtful list membership I've considered asking him to change his name, but concluded that was perhaps a bit extreme ;) Oh -- and I thought you were de-subscribing? with my best regards, -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] centos] rpm and /etc/cron.daily/rpm
On Mon, 29 Aug 2011, Always Learning wrote: Brilliant job creation scheme to increase State and Federal tax yields. 'Always' -- if you are going to post cr*p, at least have the courtesy to not CROSS post to Red Hat lists and here -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] centos] rpm and /etc/cron.daily/rpm
On Mon, 29 Aug 2011, m.r...@5-cent.us wrote: Russ, my fault - I'd crossposted to here and the general RH list. Dunno if I should consider filing this as a bug or not with upstream. yes but, no ... your content was not wild-ass OT political - R ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Off topic list for centos please?
On Thu, 25 Aug 2011, Kenneth Porter wrote: I think the centos-offtopic list should also be centos related, but not so strict postings as the current list is. yeah -- just like there is presently any self control being shown by certain serial offenders here. We could set it up, but the people who need to use it wont't Perhaps a better split would be centos-tech for on topic stuff you know ... if the inmates were running the asylum, that would be a SUPER idea This list has turned into such a high noise, low signal (but OPEN, DEMOCRATIC, and FREE SPEECH) cesspool that it has succeeded in driving away substantially all posters bringing content of tchnical merit here tragedy of the commons, I guess -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Off topic list for centos please?
On Thu, 25 Aug 2011, Timothy Murphy wrote: Surely it is easy enough to avoid reading an article labelled OT? sure -- one person SHOULD be able to burden tens of thousands to clean up after them repeatedly - R ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Off topic list for centos please?
On Thu, 25 Aug 2011, Les Mikesell wrote: And if anything drove posters away from here it was certain people telling them their input wasn't wanted. you are right, Lesthere is no purpose to participating further here -- Russ herrp;d ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] what happened to rpmforge?
On Thu, 25 Aug 2011, Tom H wrote: On Thu, Aug 25, 2011 at 5:09 PM, m.r...@5-cent.us wrote: Looked over there. Any idea why they rebranded? Total WAG: to offer deb file downloads?! later by Tom H, not willing to accept that his remarks were out of scope: It was a WAG! :) no -- it was off topic noise, not a WAG -- speculation and randon attempts at entertainment do not belong or matter here, any more than Roth's failure to google and read the back archives of the proper mailing lists did If you need to, try out out at a commedy club to demonstrate you are the world's next 'Jerry Seinfeld'. Mind you, dodge the rotten fruit This list just is not for off topic IRC style chatter and banter. The traffic load is killing enough already wthout it -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-docs] http://wiki.centos.org/HowTos/JavaRuntimeEnvironment
On Thu, 18 Aug 2011, Manuel Wolfshant wrote: Makes sense, and I would propose that would replace the current content on http://wiki.centos.org/HowTos/JavaOnCentOS My thoughts exactly ! I am missing something ... a review of google inlinks indicates this page is widely referenced by third party sites. Casually blowing this away without preserving at least parts seems ill considered change for its own sake The top part by me remains a general and valid description of a method for getting Oracle's / Sun Java running ... not perhaps the easiest in light of some later changes, and perhaps not the 'ight' solution in light of the growth in maturity of openjdk ... but that The bottom remains a rotting trainwreck needing maintenance every time Oracle issues an update ... shocking. Who could have predicted that? -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS] setting up bare minimal CentOS VM
On Tue, 9 Aug 2011, John R Pierce wrote: how do you supply the ks.cfg file when you're PXE booting and have no CD or floppy? ummm ... with DHCP, handing out the correct boot vmlinuz image under PXE for the MAC address in question, and kernel command line arguments, one of which is the location of the ks.cfg, and of the initrd, usually through a 'next' server [being a 'next' server, because it provides the next needed information] again through the TFTPD, DHCPD and (usually) FTPD or HTTPD It has not changed for years, and in all honesty, as much of what is happening is burned into 'state machines, inside of boot roms on network interfaces, it will NEVER change substantially. See, HPA's work with SYSLINUX It is fully tested by me under CentOS 6, as part of my install testing -- so-called wire installs are how I always install is there a good how-to on setting up kickstart servers for EL6 ? We installed perhaps ten units that way today under C6 I've pretty well covered everything that can go wrong in such a process, starting a decade ago http://www.owlriver.com/tips/pxe-install/ http://www.owlriver.com/tips/hands-off/ http://www.owlriver.com/tips/tftp-xinetd/ http://www.owlriver.com/tips/centos-upgradeany/ http://www.owlriver.com/tips/tiny-centos/ http://www.owlriver.com/tips/minimal-installer/ http://www.shabazian.com/lw2007.pdf (Chip Shabazian) and of course the LTSP (Jim McQuillan) and K12LTSP (gone dark, and owned by a domain squatter, now-a-days) projects' work in Linux space redhat can't be serious when they say... http://docs.redhat.com/docs/en-US/Red_Hat_Enterprise_Linux/6/html/Installation_Guide/s1-netboot-pxe-config.html like, *WHAT* files?? does anyone PROOF READ this stuff ?!? (yeah, I know, this is upstream's problem, not CentOS...) There are no typos that I see there All the pointers you need to get started are in that paragraph. All URL's above are 'primary sources' and orininal content on how to do it -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] e-mail serving
On Wed, 3 Aug 2011, Always Learning wrote: On Wed, 2011-08-03 at 11:03 -0700, Todd wrote: indeed no, but I want to work on some pattern matching, analysis for a piece of software I have wanted to write for years.. Lots of success and good luck. Do let us know how it goes. umm -- high speed, automated harvesting of email and running regex against the corpus to yield say, a list of currently live addresses seems to fit the problem description. Why would you wish the creation of a yet another such spammer tool, good luck? ;) That said, procmail can do such trivially, and single pass filtering a million pieces a day is trivial, but the bandwidth to get it to a single machine is rather high for a residential link ... trivial in a colo let's do some science: From my mailspool, I have 6124 pieces taking up 139,083,522 bytes just now [herrold@centos-5 ~]$ echo ( 139083522 / 6124 ) | bc 22711 so 22k bytes per piece x 1 million ~= 22 G per day 86400 seconds in a day, on the simplifying assumption that one has a level steady state load (which could be done by setting a peripheral MX unit to handle the inload). I was handling 750k / day with a central unit and two MX satelites on RHL 7 with 200 MHz Pentiums and perhaps 64M or ram in them [herrold@centos-5 ~]$ echo 220 / 86400 | bc 254629 bytes per second so roughly a T-1 A single Linux box on a 386 with 16M ram running RHL 4.0 a decade ago had no problem with such loads. Getting an efficient regex algorithm would be the choke point -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] RedHat to CentOS packages
On Mon, 1 Aug 2011, Ned Slider wrote: But as outlined in that thread it is not always easy (or indeed possible) to establish which upstream source a given CentOS modified package is built from. A more reliable method would be to check the changelog. A most reliable mechanism would be to examine the building .spec file, which is included in the SRPM, and for CentOS changed packages, the project releases all SRPMS, and particularly those for changed packages -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] high performance open source DHCP solution?
On Mon, 1 Aug 2011, Kenneth Porter wrote: --On Wednesday, July 20, 2011 12:54 AM -0300 Rogelio scubac...@gmail.com wrote: The free DHCP solution, ISC, seems to be having scaling issues (i.e. handling only about 200 DHCPDISCOVER and 20 DHCPRENEW requests) I've only been watching this thread with half attention --- DHCP is UDP based -- as such it does not handle collision retry logic on the server side (a server cannot resend what it does not know [due to a collision and drop] a client has requested of it) So client retries are in play -- the ISC dhcpd server is able to handle loads substantially above the rates quoted per minute I've had setups involving LTSP PXE booting of diskless workstations, supporting several hundred such clients all booting within 5 minutes of one another at a shift start It is necessary to model, or perhaps view with tcpdump of ethereal, that traffic to see why the transfers are falling apart -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Good for a chuckle
I see in my overnight email spool: https://bugzilla.redhat.com/show_bug.cgi?id=726872 I am amused because this kind of request comes up time and time again with respect the package management system It is technically _possible_ to attain this kind of rollbacks, in some tightly controlled environments [something like cell phone tower control computer applications, where there are essentially NO end users in the environment and the computer is acting like an embedded controller], but in the general case with many diverse and randomly maintained packages, each with their own assumptions as to how to maintain their run-time environments, it is 'not gonna happen'' (TM) After deployment, User A will use postgresql or perhaps mysql to build a LAMP system. Updates will happen, and either pgsql or mysql will need to rebuild indices on the database store, because there has been a non-compatible bugfix, that is not backward compatible, or something to that effect. Because the database software authors have been burned, they have written documentation cautioning to take and test database backup dumps that may be reloaded, and and indeed also conversion testing scripts that actually attempt to do it 'behind the scenes'. The scripts are robust and will carp and bail if they run out of space, or otherwise fail other sanity checks. But there is a design decision: is one 'polite' as to filesystem use and pollution, and NOT leave that intermediate dump behind; or is one paranoid and save and age several backups, both for this conversion and generally, because you (the database software author) have been berated by your use community for THEIR failure not to read the documentation and to heed the warning to take and test backups [Those reading this will note certain parallels to rants by low-formality 'admins' who appear here from time to time -- just a random co-incidence, I am sure] Then RPM has the reasonable design feature, quite intentionally, of providing access to the full, Turing complete which a shell prompt offers. Anconda does as well. THAT can provide for dynamic repartitioning, filesystem type conversions, and so on ... How does one 'roll back' from such one-way operations? The answer of course, is one cannot without 'out of the installation' backups So I am amused that a person sees the RPM hammer, and thinks every problem looks like a nail, rather than, say, TESTING all variants, so there IS NO NEED for such a 'roll-back' capability; or running virtual instances so a 'prior backup' can be taken, the upgrade performed, and if problems show up -- no problem, just start the prior backup and the undesired 'upgrade' does not hurt at all -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] HOWTO install CentOS 6 on low memory computer or virtual machine (even 192MB RAM)
On Wed, 27 Jul 2011, Tomasz Ostrowski wrote: I've managed to install CentOS 6 on a 192MB virtual machine using LiveCD install-to-disk graphical method. snip rework of Anaconda, Live CD discussions I think you are over-thnking this. Anaconda is overkill if all you want to do is blow images onto arbitrary hardware So long as you are going through all this, why not just install to taste into a chroot with yum or RPM, rsync into a prepared hard drive, optionally fix up the fstab grub.conf settings, and run grubby or do a mkinitrd and grub initialization (The transfer and bootloader fixup my be done with a minimal image, PXE loaded, so one does not even need a working CD/DVD/ USB port. PXE has been on substantially all hardware built for the last decade) That approach is portable, and works across all CentOS variants -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Gimp PDF plugin - Centos 5
On Tue, 26 Jul 2011, Frank Cox wrote: Gimp on Centos 5 has somehow lost its ability to load a pdf file on three (i386) different computers. I'm pretty sure that this used to work. just a stab in the dark here -- upstream issued an update to poppler / evince that obsoleted xpdf (gratuitiously) mid ABI lifecycle in 5, seemingly for a security matter that seemed, to me to be a mild local exposure, only $ ldd /usr/bin/gimp | grep pop $ perhaps a needed helper application is now absent? -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Upgrading from CentOS 5.6 to 6.0
On Sun, 24 Jul 2011, Craig White wrote: you made a vacuous argument. Hunh. You are ** still ** trolling here [arguing against package management] and on this thread [C 6 matters], Craig? I thot back on June 13 you said here: easier just to give up - I moved my new servers to ubuntu - no more new CentOS installs any more -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Upgrading from CentOS 5.6 to 6.0
On Mon, 25 Jul 2011, Lamar Owen wrote: The specific example of zoneminder is particularly insidious. On our zoneminder systems, even point updates to certain libraries has created problems. A good, modern, package of zoneminder in a repo somewhere would save a lot of grief in that particular case. And even having maintained packages before, I'm not sure I would want to touch rolling my own zoneminder package(s). I've a full set for C5 on ZM 1.23 -- the SElinux blissful unawareness of that code is startling, as it is doing 'unsafe' operations all over the place. Running it on a dedicated appliance box and treating it as a vulnerable client to a SELinux enabled network using network sockets, is about the only way to run it safely 1.24 looks 'doable', although perhaps not without some C6 libraries -- I see it in rawhide, and in F, after F13, as I recall -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] lots of small files in a folder on Linux centos
On Mon, 25 Jul 2011, Marc Deop wrote: It's more than twice as fast than the previous sh script. In part this is /bin/sh v /bin/bash and using 'bashisms' matter, but yes, I did not seek to optimize a teaching throwaway 1- m5sum the file we need ... actually the NAME of the file, to make it explicit we are not looking at content [also a reasonable approach if one is looking to find and de-duplicate a filestore] 2- look for the first letter of the hash ... actually this may be more than a single letter of the hash --- with ca 3000 files, and 16 hash characters, we should end up with about 200 files per subdirectory. The filesystem should be doing some sort of index as well -- as I recall, a B-tree in the case of extN but I've not expressly looked. The php case was mentioned, however, and its directory searching is less optimal We have a customer with a similar problem with a naiively written set of home brewed PHP code, and are helping them work through similar issues 3- get into the directory 4- now we look for our file ... this is probably a single operation to suck the sub-directory listing into an array in php, and use an associative match but you are right, we are moving increasingly away from a CentOS issue to a more general coding style issue -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Upgrading from CentOS 5.6 to 6.0
On Mon, 25 Jul 2011, Les Mikesell wrote: On 7/25/2011 11:37 AM, Patrick Lists wrote: Installing non RPM software on an RPM Distro like CentOS is frowned upon. That is the worst way to do it. else has already done it. That is, building an RPM is always more work than doing a source install and often imposes inconvenient restraints like only permitting a single version to be running at once, and doesn't give you any guarantee that you won't have to repeat that extra work when the distribution changes. If you aren't planning to repeat that install on other machines, where's the payback for the extra work and constraints? The rant at the start of this thread was about a migration into C6, so of course, your predicate condition: 'you aren't planning to repeat that install' does not apply The disciplne and benefit of identifying and solving dependencies in a packaged system, rather than splatting as root over system libraries upon which other packages depend [also, the same isue using CPAN shell to 'solve' a problem, rather than packaging, as ZM has many such [1]] is obvious, and needs no further advocacy, even for a single install; the 'straw man' about setting different private library paths assumes that the person building such even comprehends that there is an issue in play. Not likely -- Russ herrold [1] [herrold@centos-5 zoneminder]$ ls -1 | grep ^per | wc 37 371354 ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] ext4, 4k sector alignment
On Mon, 25 Jul 2011, Les Mikesell wrote: My questions for any filesystem experts are: Is there a way to adjust the existing md partitions to get the right alignment for 4k sectors without having to do a file-oriented copy to new partitions? A resize + a dd copy to shift the position might be feasible time-wise if that would work. no expert here, but I have the scars across my back from pulling arrows out, as a pioneer We have hit the issue on our storage backend which runs ext4, and on some of our dom0 built before the 4k sector alignment was generally acknowledged and known to be potentially in play We have some non-conformant units, and after seaching, concluded that a 'wipe and rebuild' was the most time efficient process for us -- YMMV Is it worth converting to ext4? ext4 is pleasant in some large filesystem cases, but probably overkill as a blanket option. Certainly it is 'wayy overkill for domU as a general rule, as it makes for a more fragile image in the sense that generic tools are less likely to work without higher version and skill levels when a filesystem gets horked up and a repair expedition has to be mounted ... we had an issue that a 'dirty' filesystem that would not fsck kept showing up in a nightly backup exception report, and ended up manually repairing what should have been able to be repaired automatically Is there a difference between doing this on 5.6 or 6.x? in C5, it took extra effort to use the technology preview; in C6 it is natively available If I start over from scratch with 6.x, will the partitioning tools automatically align for 4k sector drives (with/without lvm?)? no idea if gparted does this by default -- it does not in all versions; certainly fdisk did not -- 4k alignment is on our deployment checklist, and we are manually checking partitioning to make sure, when we are rebuilding boxes -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Upgrading from CentOS 5.6 to 6.0
On Tue, 26 Jul 2011, Mike Burger wrote: If IBM can make this happen for their OS, and Red Hat certainly supports such a process in the Fedora line of releases (including the ability to list additional repositories for remote installation as part of the process), they could certainly make it a supportable option for the RHEL line. The upstream supports nothing as to Fedora, and indeed, members of that project regularly (and seem to gleefully) break forward compatability But you are missing the point -- WHY spend the engineering effort on trying to support such Major 'upgradeany's? A new deployment takes mere minutes for a commercial shop, and by NOT supporting such explicitly, the upstream avoids much support and engineering load. [I say this having done an 'upgradeany' and run into a later 'nss' in C5 than the C6 initial media provides, that required some head scratching, and a nasty workaround, to solve over the weekend] -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] lots of small files in a folder on Linux centos
On Sun, 24 Jul 2011, yonatan pingle wrote:
the coder is not tech savvy as one might expect, so it's
really hard for me to explain the issue of having lots of
files in one folder to the site owner or to the coder.
I do not expect coders to remain 'not tech savvy'
If the coder is not willing to learn and to test, you are
already doomed, and should walk away from the project
To show the problem, take a pile of pennies, and ask the coder
to find one with a given year. The coder will have to do a
linear search, to even know if the target exists. Then show a
egg carton with another pile of pennies sorted and labelled by
year in each section, and aask them to repeat the task -- in
the latter case, it is a 'single seek' to solve the problem
Obviously, the target year may not even be present. With a
single pile (directory) the linear search is still required,
but with 'binning' by years, that is obvious by inspection as
well
One approach to lots of files in a single directory (which can
cause problems in getting timely access to a specific file) is
to build a permuted directory tree from the file names to
spread the load around. If the files are of a form where they
have 'closely identical' names [pix1.jpg, pix2.jpg,
etc], first build a 'hashed' version of the file name with
md5sum, or such, to level the hash leading characters
[herrold@localhost ~]$ ./hashdemo.sh
pix1.jpgfd8f49c6487588989cd764eb493251ec
pix2.jpg12955d9587d99becf3b2ede46305624c
pix3.jpgbfdc8f593676e4f1e878bb6959f14ce2
[herrold@localhost ~]$ cat hashdemo.sh
#!/bin/sh
#
CANDIDATES=pix1.jpg pix2.jpg pix3.jpg
for i in `echo ${CANDIDATES}`; do
HASH=`echo $i | md5sum - | awk {'print $1'}`
echo $i${HASH}
done
[herrold@localhost ~]$
then, we look to the leading letter of the hask, to design our
egg carton bins. We place pix1.jpg in directory: ./f/ and
pix2.jpg in directory ./1/ and pix3.jpg in directory
./b/ and so forth -- if the directories get too full again,
you might go to using the first two letters of the hash to
perform the 'binning' process
The md5sum function is readily available in php, as are
directory creation and so forth, so positioning the files, and
computing the indexes are straightforward there
This is all pretty basic stuff, covered in Knuth in TAOCP long
ago
-- Russ herrold
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[CentOS] lots of small files in a folder on Linux centos
On Sun, 24 Jul 2011, Always Learning wrote: If the pictures are named sequentially, why not store then at a 100 per directory structure something like this /pix/0/00/pix1.jpg /pix/0/26/pix02614.jpg /pix/6/72/pix67255.jpg Go read Knuth One does not do that because then one is counting on the end user's data to conform to, and to continue to conform to your expectations [here you have added an invisible constraint of 'pix' as the first part of the file name which you are hoping remains constant -- it will not, as survey of naming schemes used by digital camera makers will reveal]. Your explicit constraint of a monotonicly increasing image number is also not likely to be realized in a world where people will erase or for other reasons not submit all of a given photo shoot By using a hash, we remove those constraints, and also gain the virtuous effect for free of self-organizing a relatively level dispersion of files to the destination directories -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] lots of small files in a folder on Linux centos
On Sun, 24 Jul 2011, Keith Roberts wrote: By using a hash, we remove those constraints, and also gain the virtuous effect for free of self-organizing a relatively level dispersion of files to the destination directories Not followed the whole thread, but a SQL database index of the actual picture files, giving the path into the directory structure. Would that work? Fortunately there is a full, and freely accessible of all posts to this mailing list. The link to that archive is in the header of every message through this list. As such you need not speculate As I read the post initially, the problem was as stated in the subject line, and the database issue was not in the forefront Per the initial problem description, the files were all splatted into a single directory. The fastest database I know of is using the filesystem as a database; The addition of the hashing is just a pointer, and so also O(1) Adding a database engine, with the overhead that it brings, and as the thread has already pointed out, in a domU as well (not usually the best place to add the overhead of a database), simply are additonal points of mis-design “We should forget about small efficiencies, say about 97% of the time: premature optimization is the root of all evil. Yet we should not pass up our opportunities in that critical 3%. A good programmer will not be lulled into complacency by such reasoning, he will be wise to look carefully at the critical code; but only after that code has been identified” - Donald Knuth [1] Once the implementation is 'correct', then it is time to do A:B testing to see where the really problem lies ... which testing was at the head of my initial post on this topic -- Russ herrold [1] http://pplab.snu.ac.kr/courses/adv_pl05/papers/p261-knuth.pdf A person not willing to pony up $2.73 for a used copy of 'The Art of Computer Programming: Sorting and Searching. Volume 3', which discusses the specific problem space here, may wish to read and consider his rather nice lecture published by the ACM ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Upgrading from CentOS 5.6 to 6.0
On Sat, 23 Jul 2011, Thomas Dukes wrote: I use to be able to upgrade by doing a 'yum update'. That doesn't work either. A low skill user was never able to go from 2.1 to 3, nor 3 to 4, nor 4 to 5, and an a minimally skilled will not be able to go from 5 to 6. This is the policy of the upstream, and a sensible one, because of invasive changes each major release represents. Functionally, each major is a new product. That said, the CentOS wiki has an UNSUPPORTED method for media based 'upgradeany' transitions of the type you mention. It IS UNSUPPORTED, because it can break systems. For that reason, I specifically added warnings to that article, to take and test backups before trying that path Guess I'm stuck with 5.6 as I an not about to install a new version and have to rebuild all non-rpm packages from scratch. This is worse than Microsoft!! Much worse -- you could not steal binaries and license keys from CentOS because we give them away for free CentOS ships no non-RPM packaged packages -- look to whoever put those packages on your box without using the packaging system if you feel the need to blame someone -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] centos] Upgrading from CentOS 5.6 to 6.0
On Sat, 23 Jul 2011, Thomas Dukes wrote: When I say non-rpm, I mean source packages I compiled such as zoneminder. CentOS ships no non-RPM packaged packages -- look to whoever put those packages on your box without using the packaging system if you feel the need to blame someone [clean up the trimming and leave the top post as it was] and so the person you are angry at for not taking the time to do the packaging, to have a SRPM that may be rebuilt, is ... ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-docs] C6 needs a FAQ entry for GUI setup ( tweaking xorg.conf )
On Fri, 22 Jul 2011, Manuel Wolfshant wrote: As some of you probably already know, since RHEL 6 xorg.conf does not exist any more by default. it is not created by default any more, but is honored if present is my understanding, as for multi-head, and for solving tricky scan problems Based on the questions asked on IRC, I think it would be a good idea to add a FAQ entry on how to create one ( and how to modify the resolution on systems where the defaults are not OK). a pretty wide topic -- as I recall there is an option to emit the config file. but addressing general X setup is robably not something we want to do locally, so much as simply point to the proper upstream archives? Is anyone with prior experience in this domain willing to do it ? Otherwise I'll have to compile one myself... I have some notes -- I'll discuss in IRC w you tomorrow -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS] CentOS 6 system-config-bind missing?
On Wed, 13 Jul 2011, Emmett Culley wrote: No, it isn't. At least it isn't trivial for those of us that only occasionally need to modify their DNS server(s). I had a few gripes about system-config-bind, but on the whole it did make it easy for me to manage our DNS servers without having to study the docs each time I needed to make a change. I promised I would not get drawn into this thread, but ... This thread and its description of the experience gap is telling ... One camp wants a 'black box' tool that does _something_, so they can ignore what is happening 'under the covers' and move on to more interesting uses of the computer. And then there are the professionals. And this _is_ billed as a boring, trailing edge and stable, enterprise operating system, after all But my use cases are related to a prodduction environment, maintaining several hundred zone files, with lots of adds, changes, and deletes. The s-c-bind GUI tool was useless, compared to TUI edits (certain legacy systems) and scripts to do the backups, accuracy audit, and creation of all files including the PTR record files But our TUI system was really was not up to the new TXT record formats for anti-spam purposes, SRV records, and and ipv6 PTR generation, so we redesigned and have moved to a local database backed, webbish tool The latter still DISPLAYs zone files, so I can check its work (and indeed 'bind' dumps backups that look like zone files), but all transactions are done 'across the wire incrementally' through encrypted, keyed DNS tranactions, line by line, and NOT by shipping zone files around. There is also a webbish GUI permitting downloading a local format CSV representation of the zone files, that 'gnumeric' and Google spreadsheet read just fine But this GUI tool is also tightly coupled to local workflow, and not really something we would release the web LAMP sources for, because we ** want ** to be free to break the API as needed for business purposes Now I suppose my only choice is to install webmin, or compile system-config-bind from source. or, just maybe, study a zone file and read about it and grow in skills. Also, there exist on-line tools to construct well-formed zone files, and google has umpteen gazillion articles of varying quality and accuracy, I suppose. The two you list are your 'only' choice, only if you are into drama I cannot understand the reasoning behind dropping system-config-bind from CentOS/RHEL 6. Then leaving it in Fedora. Since when is less tools better? Especially since there doesn't seem to be a reasonable replacement for this useful tool. I am not unbiased in this matter, as I asy, I've been building zone files for a long time, first using a locally hacked up and extended version of 'h2n', and other tools from the ORA Cricket book By comparison, the s-c- GUI DNS tool formerly offered reminded me of a lame little puppy -- better than nothing, but just barely. Lots of the 'glade' based 'tools' which the upstream has rolled out seem, to me, to be present to satisfy a PHB's requirement for a GUI tool on a checklist, for a given service. They could not be called 'best of breed' by a neutral observer, by any reach of the imagination -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS 6 system-config-bind missing?
On Wed, 13 Jul 2011, Les Mikesell wrote: around. Russ may be of the opinion that everyone should memorize bazillion-page books of details about each quirky service or hire dunno that those are my words at all The issue was DNS zone files One takes a template, and in the residential user case, edits perhaps 5 lines, consisting of A and CNAME records for a residential network for the 'forward' zonefiles ... or uses 'h2n' that takes as its input a file that looks like /etc/hosts s-c-bind may have met the need or it may not have, but it was not worth learning to me, after a brief examination, because it provided no gain over incumbent tools to me to make it worth going down its learning curve. The s-c-kickstart-config (or whatever it was named) tool is in that same boat The one off domain case is just not that hard The commercial case with hundred of complex entries is not the same scale problem, and to hope for a common tool need not be a dream -- but, the overhead of setting up a scalable keyed DNS management tool, is not worth the effort cost to a residential user and I suspect not worth the support load it would cost the upstream on what is an essentially bespoke solution -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Clearlooks Bluecurve icons missing from Centos 6
On Tue, 12 Jul 2011, Ljubomir Ljubojevic wrote: Please post your replies bellow the original text you are replying to for easier read. Has anybody looked is SL dev team created those? Also, has anybody tried to rip out those files from C5 and just repack it? Ljubomir ... PLEASE stop saying whatevr comes into your head on CentOS mailing lists ... this is the CENTOS mailing list You can look at this as well as anyone else ... and IF SL had done something of this sort, you can use a direct email to the inquiring party to let them know your results Certain art work may not be present .. but as you SHOULD know, CentOS seeks to be a strict build in most matters. If it is not present upstream at a given revision point, it SHOULD NOT be in CentOS proper. Adding supplemnetal backgrounds art not present in the upstream product is not part of its core mission -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] 6.0 text-mode installer broken?
On Tue, 12 Jul 2011, Ljubomir Ljubojevic wrote: Someone posted that you can use VNC to install CentOS 6. and this has WHAT to do with low ram installs? PLEASE stop this noise, just to hear yourself talk, Ljubomir -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-docs] CentOS 6 (and 5.6) doc on http://www.centos.org/docs
On Mon, 11 Jul 2011, John R. Dennison wrote: On Tue, Jul 12, 2011 at 01:04:41AM +0300, Manuel Wolfshant wrote: I am more into creating some form of redirect from docs.c.o to upstream's relevant docs. Is this permissible now? Not that I am aware of .. I have invited the upstream to repudiate their counsel's prior demand that this project NOT do this, and have had no positive response -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS] Where can I download centos 6
On Fri, 8 Jul 2011, Mogens Kjaer wrote: The 6.0 folder is not readable for external users until the bitflip occurs. The implicit statement being that a mirror operator could _jump the gun_ on the official release, and 'have 'the release early. Indeed, in the past some (former) mirror operators released 'early samples' and posted such URLs ... and one of the CD vendors released a non-officially released ISO, that they (assumedly) then had to recall and replace This turned out to be ill-considered, because the release process is not official until announced, and in one of the past releases, we needed to replace a few files 'at the last minute' -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] centos 5.6 and intel MHD4500 graphics card
On Tue, 28 Jun 2011, Hüvely Balázs wrote: I've a toshiba satellite notebook, and I tried to install centos 5.6. The installer starts, but when it turns to graphical mode, the backlight goes off. I see the windows, buttons, but it's very dark, maybe the backlight switching off.. do a text mode install this class of problem is in a long time unaddressed issue group upstream https://bugzilla.redhat.com/show_bug.cgi?id=640421 -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-virt] New to virtualization - can't use more than one CD when installing a new VM
On Mon, 27 Jun 2011, Steve Campbell wrote: Our company blocks bittorents due to abuse. I believe the DVD ISOs are now taking up two DVDs, so I'm not sure how I'd do this either As I recall, the DVD's were formerly created from a pile of CD The former script that I used was based on one from: ftp://people.redhat.com/ckloiber/mkdvdiso.sh but that link (and indeed FTP access to that server) seems to have disappeared Google indicates there was a successor: mkdvd-rhel3u2.sh but it may well be that understanding the process, or setting up a local install mirror is faster than getting into DVD re-authoring This is an old post, but looks as though it should still work http://www.redhat.com/archives/psyche-list/2002-October/msg00252.html ... remastering custom install media is not all that hard, but it is tricky to diagnose when it fails. I'll give it a whirl using the -graft-points to mkisofs ... I see also in: dvd+rw-tools a tool: growisofs which looks promising -- Russ herrold ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS] mirroring with lftp
On Mon, 27 Jun 2011, John R Pierce wrote: does someone have a script for maintaining a repo with lftp they'd like to share? what I saw on the wiki wasn't very helpful. [root@xps400 ~]# grep kernel *conf lftp-centos-4-updates.conf: ftp://mirrors.kernel.org/centos/4/updates/i386 \ lftp-centos-4-updates.conf: ftp://mirrors.kernel.org/centos/4/updates/x86_64\ lftp-centos-5-updates.conf: ftp://mirrors.kernel.org/centos/5/updates/i386 \ lftp-centos-5-updates.conf: ftp://mirrors.kernel.org/centos/5/updates/x86_64\ lftp-openwall.conf: ftp://mirrors.kernel.org/openwall/Owl/contrib/2.0/SRPMS/ \ [root@xps400 ~]# cat lftp-centos-5-updates.conf # # Get the Centos 5 updates # mirror -c -e \ ftp://mirrors.kernel.org/centos/5/updates/i386 \ /var/ftp/pub/mirror/centos/centos-5/5/updates/i386/RPMS # mirror -c -e \ ftp://mirrors.kernel.org/centos/5/updates/x86_64\ /var/ftp/pub/mirror/centos/centos-5/5/updates/x86_64/RPMS # # The following line is for our yum-arch and # createrepo logic # # yum: /var/ftp/pub/mirror/centos/centos-4/4/updates/i386/RPMS # [root@xps400 ~]# This is warpped in a driver script that walks through the directory, lokking for files ending in .conf -- when it finds them it runs: lftp -f /root/lftp-centos-5-updates.conf which script is linked into /etc/cron.daily/ I do a lot more as well (lockfiles, deltas, emailled reporting of unexpected variances, and so forth) so extract its essence here A google search with: site:orcorc.blogspot.com lftp will turn up relevant links -I and -X globbing are arcane, and here are some examples I use [root@xps400 ~]# cat lftp-RHEL-enterprise-all-srpms.conf # # # mirror -c \ -I */SRPMS/* \ ftp://ftp.redhat.com/pub/redhat/linux/enterprise/ \ /var/ftp/pub/mirror/redhat/rhel/at-release/SRPMSonly # mirror -c \ -I */SRPMS/* \ ftp://ftp.redhat.com/pub/redhat/linux/updates/enterprise/ \ /var/ftp/pub/mirror/redhat/rhel/updates/SRPMSonly # # new in 5 mirror -c \ -I */SRPMS/* \ ftp://ftp.redhat.com/pub/redhat/linux/updates/rhn/ \ /var/ftp/pub/mirror/redhat/rhel/updates/rhn/SRPMSonly # mirror -c \ -I */SRPMS/* \ ftp://ftp.redhat.com/pub/redhat/linux/eal/ \ /var/ftp/pub/mirror/redhat/rhel/eal/SRPMSonly # mirror -c \ -I */SRPMS/* \ -X */4AS/*\ -X */4Desktop/* \ -X */4ES/*\ -X */4WS/*\ -X */5Client/*\ -X */5Server/*\ -X */RHHPC/* \ -X RHHPC/*\ ftp://ftp.redhat.com/pub/redhat/linux/beta/ \ /var/ftp/pub/mirror/redhat/rhel/beta/SRPMSonly # # added X for RHHPC 2011-06-20 # That last -X specification seemed to be needed (although one out think the entry above it would provide the same effect). It does not, as 'lftp' uses a textual, rather than a logical parsing, and */RHHPC/* != RHHPC/* as the match on the leading */ is not discarded I wish it used a reasonable regex language, but as John Boehner said last week in a different context: 'If ands, if's and but's were candies and nuts, it'd be Christmas every day' and I have no intention of forking lftp ;) -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Does anyone using dm-cache?
On Fri, 24 Jun 2011, Rudi Ahlers wrote: Hi, Has, or does, anyone use dm-cache - specifically for caching SAN based storage locally? hmmm From another list Date: Fri, 24 Jun 2011 16:38:29 +0200 From: Rudi Ahlers r...@softdux.com To: xen-users xen-us...@lists.xensource.com Subject: xen-u] anyone using dm-cache? Hi, Has, or does, anyone use dm-cache - specifically for caching SAN based storage locally? = Please do not cross post --- we are not your research arm -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS-virt] Recommendations, please
On Thu, 23 Jun 2011, Alain Péan wrote: I must say that the meaning of your message is not clear for me. What is the difference for you between The sources that will become CentOS 6, and CentOS proper ? What do you have in mind ? Why KVM may be excluded ? for reasons out of scope here, CentOS 6 has not formally issued. Thus I must speak of the 'sources that will become' CentOS 6, as there is no binary CentOS 6 yet That said, I have been running private rebuilds of '[t]he sources that will become CentOS 6' at a virtual and colo hosting facility for which I admin, http://www.pmman.com/ As part of that work (related to KVM hardware minimum requirements, compatability with certain local libvirt based tools, and performance of KVM vs. xen), I and other techs have set up and run 'xen.org virtualization' to power the backend dom0's As such, we have working installations that demonstrate that a person may CHOOSE to fork from CentOS's prospective KVM virtualization providing mechanism (that is, may choose to NOT use KVM), and rather one might instead use xen.org based tools Yes ... I agree, English can be a unruly language to parse certain conditional constructs -- Russ herrold ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Recommendations, please
On Thu, 23 Jun 2011, Manuel Wolfshant wrote: Without implying that I can read his mind, I guess he meant People with enough skills will be able to tweak C6 to use xen as Dom0 Wolfie beat me to the post by eight seconds, it seems Yes, it appears that he can read my mind -- Russ herrold ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Recommendations, please
On Thu, 23 Jun 2011, Tom Bishop wrote: Russ if you have time can you elaborate more about why you are continuing to go down the Xen path, I for one would love to hear the why's and what for. I can understand the hardware requirements, and I know xen is generally going to be faster but my small requirements have decided to start moving things to KVM since that is the direction of the upstream...would welcome your opinions if you have time available...Thanks in advance :) I wasn't hiding my reasoning -- part of my reasoning is soft and 'touchy, feely' but you asked ... ;) As part of that work (related to KVM hardware minimum requirements, compatability with certain local libvirt based tools, and performance of KVM vs. xen), I and other techs have 1. support for an existing hardware delivery base -- I find that the upstream is falsely assuming everything fielded has (or should) hardware virt bits enabled. This does not match the refresh lifecycles I observe at _my_ customers, nor at our shop 2. we have a substantial investment in libvirt tools which are unproven and unqualified as to KVM until we get our hands on the official 'as issued' CentOS 6. I've been VERY frustrated with the update API compatability in the upstream's 5 product line in this regard, as gratutitous changes, not documented, creep in, and remain unresolved for months, if not full point update cycles. I'm not a 'big enough fish' for those customers running the 'supported' product to get updates released, and so we are very conservative in what we deploy # 649438 still NEW, opened 2010-11-03, confirmed in 5.6 on 2011-05-26 # 506688 closed unfixed 2010-11-03, opened 2009-06-18 3. performance of KVM vs. xen -- formal metrics will be issued by me once CentOS 6 issues, but in identical hardware side by side tests, xen zips, and kvm waddles Upstream has its investment in the KVM technology to justify, and it may well be that things 'get better', but if one is not pulling metrics against the competition, one is deluding onself; I do not see evidence that this is occurring I put numbers on out production bottlenecks; we use agile techniques to address the 'hottest' issues daily, tdd to prevent unspecified behaviours from creeping in, and 'belt and suspender' techniques to design out recurrence errors in our processes. KVM is 'not there yet' for me -- Russ herrold ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-virt] Recommendations, please
On Thu, 23 Jun 2011, Alain Péan wrote: I must add that, due to the fact Dom0 has been included in recent Kernel 3.0 tree, it will certainly be possible in future releases of RHEL, then CentOS, to choose either Xen or KVM as virtualization solution. perhaps, but this is in part a LKML political question, is it not? also, upstream's 7 is some time away ... Q4 2012 is the current roadmap for 'RHEL NEXT' [1] from a recent public presentation they made -- Russ herrold [1] http://www.pmman.com/Red_Hat_IBM_s390_ISV_call_May-2011.pdf (PDF, 3.6M) at page 5 ___ CentOS-virt mailing list CentOS-virt@centos.org http://lists.centos.org/mailman/listinfo/centos-virt
[CentOS-docs] OS Hardening typo?
On Thu, 16 Jun 2011, Alan Bartlett wrote: On 16 June 2011 08:26, Cody Jackson supertanke...@gmail.com wrote: perl -npe 's/ca::ctrlaltdel:\/sbin\/shutdown/#ca::ctrlaltdel:\/sbin\/shutdown/' -i /etc/inittab I think God kills a kitten whenever perl is invoked when simple sed would do ... just saying ... -- Russ herrold ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
[CentOS] CentOS-6 Status updates
On Wed, 15 Jun 2011, Gordon Messmer wrote: Nothing that Red Hat did has increased the burden on CentOS. so says the person who has not done it - the rpm tool changed, adding a non-backward compatible compression scheme. as I blogged about months ago; this has 'flow through' effects as to bootstrapping a new builder - the anaconda changes, re-design as to install stages, sever deprecation of TUI installs, unfixed graphics driver issues, and install time anaconda 'seeks' across the wire to remote network content introduced addotional complexity to an already ever-changing and at best, spaghetti like pile of Python puke, as I've already noted on this and the -devel mailing list - the install image size explosion (as has been mentioned here and on -devel) has complicated much, and lengthened the time needed for each test image compose, slowing the testing turn cycle - the continuing (non-technical reason) segmentation of the upstream product family continues to make ensuring closure, and build self-hosting more laborious. I think I've mentioned it here, but if not, it is so ... -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] CentOS-6 Status updates
On Tue, 14 Jun 2011, m.r...@5-cent.us wrote: Les Mikesell wrote: On 6/14/2011 12:19 PM, m.r...@5-cent.us wrote: PLEASE ... let this thread die or take it to a bar somewhere ... it has NOTHING do do with the subject line -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] apr-util-pgsql
On Sun, 12 Jun 2011, Alexander Farber wrote: does anybody know of a good source for a apr-util-pgsql rpm package for CentOS 5.6 / 64 bit and even more I'm curious why isn't it included but the apr-util-mysql is included... I seem to have one built on a CentOS 5 platform, although I do not have it insgtalled, as side fruit from a rebuild of apr-util for building a later 'subversion' -- it seems to be a straight rebuild of the Fedora 13 SRPM (there were some other build requires as well) [herrold@centos-5 build]$ find ~/rpmbuild/ -name apr-util-pgsql* /home/herrold/rpmbuild/RPMS/x86_64/apr-util-pgsql-1.3.9-3orc.x86_64.rpm /home/herrold/rpmbuild/RPMS/x86_64/apr-util-pgsql-1.3.9-1orc.x86_64.rpm [herrold@centos-5 build]$ rpm -qip \ /home/herrold/rpmbuild/RPMS/x86_64/apr-util-pgsql-1.3.9-3orc.x86_64.rpm Name: apr-util-pgsql Relocations: (not relocatable) Version : 1.3.9 Vendor: orc Release : 3orc Build Date: Wed 15 Sep 2010 05:18:42 PM EDT Install Date: (not installed) Build Host: centos-5.first.lan Group : Development/Libraries Source RPM: apr-util-1.3.9-3orc.src.rpm -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] What is someone trying to do?
On Sun, 12 Jun 2011, Mike Williams wrote: Do you edit rewrite rules for every access that would otherwise be a 404 and change it to a 301? If so, what do you redirect them to, and why? Sounds like a lot of work. This was covered by me in a blog post some time ago, as to my approach: http://orcorc.blogspot.com/2010/06/reading-logs-part-3-run-your-updates.html The rationale for having a redirect (offsite, back to the proper's localhost) is to quell noise from the probing, that would otherwise land in Logwatch reports The effort for maintaining the rules is minor compared to that of wading through logwatch reports full of cruft, multiplied by however many webhosts one reads log files for. As I read a couple hundred logwatch reports each morning, a significant win for me ... Also, the same probing scripts seem to wash around and after a while, one has most of them identified, and in the redirect file To get folks started, I've pushed my local packaging of rules 'outside' under a GPLv3+ license in SRPM form at: ftp://ftp.owlriver.com/pub/mirror/ORC/deepsix/ -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] C6 LiveCD top 5 apps
On Sat, 11 Jun 2011, Steven Crothers wrote: You could release your work to something like Github, but I'm sure the CentOS team doesn't want that... ehh? The CentOS team has been quite clear that its product carries the license of the underlying packages, and then GPL for released CentOS source code; I am aware of no exceptions as to released binary content from the project) CentOS private signing keys have never been released, and will not be, to avoid forged content is the project's name; CentOS' branding changes are all knowable from the SRPMs released; CentOS' trademarks (the brand name, and the logo, are what come to mind) would need to be replaced, but this is straightforward, and as noted, the sources are published SME, and ClearOS, and others have worked forward from a CentOS base for years without objection from the project The only material restriction is that of not falsely representing non-CentOS content as of CentOS origin. 'mash-up's' from some VPS vendors that sell under the 'CentOS' name, but deliver some hacked up knockoff, carrying a mish-mash of cruft, and sending their support load into CentOS channels, are what really raise my hackles I don't know why a VCS such as github is needed for such a small set of revisor CLI control scripts, but it may of course be done The thing that would be galling is if a sub-project author 'hijacked' CentOS mailing lists on a sustained basis, rather than having the honesty to announce and publish and thereafter run their own infrastructure -- El Repo is an example of such a well-run sub-project, off the top of my head; alternatively some have published content under the CC license of the CentOS wiki, and that may well serve here for documenting a revisor recipe. The -docs mailing list is the provided venue for getting rights to slot such content in My $0.02 -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] C6 LiveCD top 5 apps
On Sat, 11 Jun 2011, n...@nux.ro wrote: I'd like to see on the LiveCD the following: 1. latest dd_rescue 2. latest gparted 3. ntfs-3g 4. screen 5. mc CentOS 6 Live CD would composed of packges from the distribution's packages --- 'latest' is not a criteria there; as to something with 'ntfs' I do not know the containing package, but it's not likely: [herrold@xps400 centos-qa]$ find /var/ftp/pub/mirror/centos/centos-qa -name *ntfs* [herrold@xps400 centos-qa]$ 'screen' and 'mc' are possible as each is a relatively small, TUI package without major dependencies just my $0.02 -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] revisionist history: was: ClearOS rebuild
On Fri, 3 Jun 2011, Marko Vojinovic wrote: [Upstream] didn't restrict access, it was only rebranded as another project oh horse puckety The binaries (base and updates) formerly freely available in RHL disappeared behind a license paywall; a new brand that was 'enforceable' emerged [RHL was not]; the 'fedoraproject' (R, TM) is a wholly owned subsidiary of the upstream; and so forth -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] ClearOS rebuild
On Fri, 3 Jun 2011, Les Mikesell wrote: Got back and look at the changelogs of the PostgreSQL packages. Give me a hint about what to look for. $ rpm -q --changelog postgresql-libs | grep -i owen Lamar was, during the time of RHL, postgresql's maintainer as to RPM based packaging, and as I recall part of the 'testers-list' cadre, that group took the early arrows in the back, stabilizing the then distribution on behalf of the FOSS 'community' -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Capturing ftp reponses
On Thu, 2 Jun 2011, James B. Byrne wrote: tell me how I can capture and log the initial response to the ftp connection? man expect It is usually straightforward to capture a transcript of a session, and then abstract away the needed prompts and responses (The ORA 'Exploring Expect' by Don Libes should be read and studied by every sysadmin wanting to be more than a bike-shed painter -- I use such problems to train PFY on their road to BOFH'hood) As I recall FTP has some parts in its protocol, as does telnet (another ancient protocol) that are sent to varying file handles, and with varying 'echo' to console stty options, in setting up connection options -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] scheduling differences between CentOS 4 and CentOS 5?
On Mon, 23 May 2011, Mag Gam wrote: I would like to confirm Matt's claim. I too experienced larger latencies with Centos 5.x compared to 4.x. My application is very network sensitive and its easy to prove using lat_tcp. Russ, I am curious about identifying the problem. What tools do you recommend to find where the latency is coming from in the application? I went through the obvious candidates: system calls (loss of control of when if ever the scheduler decides to let your process run again) polling v select polling is almost always a wrong approach when latency reduction is in play (reading and understanding: man 2 select_tut is time very well spent) choice of implementation language -- the issue here being if one uses a scripting language, one cannot 'see' the time leaks Doing metrics permits both 'hot spot' analysis, and moves the coding from 'guesstimation' to software engineering. We use graphviz, and gnuplot on the plain text 'CSV-style' timings files to 'see' outliers and hotspots Knuth's admonition about premature optimization applies here of course A sensible process might be: Make it work correctly, THEN make it fast Some people add a precursor step of: make it compile but this seems to me a less efficient process than simply proceeding up with a clean design at the start, and the expedient of 'stubbing' out unimplemented portions. Then replace the stubs with 'correctly' funcitoning refactorings (... I just did this with part of my build tools, writing a meta-code outline of what I wanted, and then implementing the metacode) The C++ code of the 'trading-shim' tool (GPLv3+) was produced in just this fashion over the last few years, and compared to all the competitors in its class, outpaces them all in terms of minimal latency .. most of that competition being Java based, or in some other scripting language. The 'shim' runs like a scalded dog ;) -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Mon, 23 May 2011, Les Mikesell wrote: Community effort or not, it did once seem like you had goals for timeliness as well. Are you happy with the current situation? If more community participation is off the table, what else could help? Johnny points out that we get crickets at he end of these threads ... the last paragraph of this email proposes a solution YOU should like and find COMPLETELY meets your needs The issuance sequencing of the recent 4 and 5 updates were intentionally placed ahead of 6. I've published such a method for non-root rpm building in my personal 'tips' webpage dating from before there WAS a CentOS, in the CentOS wiki, and in this mailing list. We have an unsolicited confirmation on this mailing list that the method outlined used works, for those people who find themselves constrained by the requirements of self or others to 'front-run CentOS' release of such, and put non-centos content in place pending CentOS' formal release of such If a person NEEDS updates the second the upstream issues them, and is unwilling to follow the self-build front-run method, they probably need a SLA from a vendor meeting their requirements. CentOS does not offer such, and has no intentions of doing so Tell you what, Les -- YOU build what you want, optionally gathering a 'community', and document what YOU want, and tell us the URL. We'll all be richer for it. I'll be happy to see more than talk from you. But then I expect to hear ... crickets -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Mon, 23 May 2011, Timothy Murphy wrote: This seems to me to be an unnecessarily agressive response to what appeared to me a rational question from Les Mikesell. But I don't think the fact that a service is free entitles its proponents to be rude to those using it. You must be new to this mailing list :) no -- this post was intentional on my part as part of a new approach to this mailing list's 'poisonous people' [1] ... I am going to try: stop ignoring public misbehaviour, and rather point it out expressly (that is: 'shame' rather than 'shun') Sort of like St. Patrick driving the Celtic snake spirits out of Ireland 'Banishment' either by way of unsubscription, or moderation cannot work -- a troll will just subscribe another sock puppet Well-known trolls who find their entertainment during the workday sowing discontent here, with the techniques of 'Twenty-Five Rules of Disinformation' [2] and otherwise, will be invited by me to put up or shut up We'll see how (and if) this works -- it formerly worked well in the IRC channel where we could use a LART; dunno that it will work here -- Russ herrold [1] http://video.google.com/videoplay?docid=-4216011961522818645 [2] Google knows ... This enumeration seems to be of unknown authorship, but 'rings true' for much seen here ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Sun, 22 May 2011, Gordon Messmer wrote: Who said anything about 5.6 breaking the environment? Everyone in the very long thread gave the excuse that it was done concurrent with other releases. customary trolling by Gordon Messmer -- passive agressive, implying an unmet obligation ex·cuse /ikˈskyo͞os/ Noun: A reason or explanation put forward to defend or justify a fault or offense. Verb: Attempt to lessen the blame attaching to (a fault or offense); seek to defend or justify If CentOS does not meet your needs, Gordon, please use something else. In all cases, please troll elsewhere, if you feel you must troll -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Sun, 22 May 2011, Steven Crothers wrote: I think you're missing the point, if you read between the lines, the complaint I see is that CentOS (Community Enterprise Operating System) is not community based whatsoever. I don't mind-read as to what a third party meant so well as you, it seems My intent with cAos (post fedora.us), and with CentOS was to keep available for the FOSS development community at large, the fruit of the distribution integration represented in the 'testers-list' non-public beta group for the former RHL, and the years of work represented there, by people both outside and inside Red Hat. It initially appeared that there would not be a binary form integrated distribution in RPM packaged form. Greg of cAos indeed re-worked a fairly initial installer called 'cinch' It was not at all clear that Red Hat would not threaten litigation to close such efforts down. They had made such threats previously to one of the other co-founders of the CentOS sub-project of cAos, as to a RHL rebuild and respin he had marketed To suggest that CentOS is 'not community based whatsoever' will come as a great surprise to the donors of bug triage effort, of mirroring effort, of wiki authoring, of forum participation, of live-CD 'mixing', and so forth But as hughesjr mentioned just last week, letting random people (seemingly a 'community of random and untrusted persons') feed content that would end up signed in the CentOS project's name, is simply not going to happen. CentOS has never been about that A 'vetting' and reputation system was proposed in some early design documents for fedora.us, but that project lacked the mass to make it work; cAos tried a variation of this, and encountered a problem with its v.2 when a novice packager inadvertently introduced a 'one way' library version bump, impairing the maintainability of that release going forward; The ATrpms v. DAG archive approach on pushing new versions of certain core packages shows two approaches, and the DAG non-invasive approach is clearly the mind-share winner -- We've [the third-party packaging community] (at least, I've been in projects that have) tried variants of 'anyone's code is welcome' distribution adjunct preparation before, and it does not work well CentOS binaries creation process is by and large is a very literal and non-creative effort If people want to start their own rebuild efforts, peace be with them, and good luck. But fostering spin-off's is not what CentOS is about -- and people railing to the heavens about how unfair it is that THEIR false expectations (based on some amorphous vision of how great something COULD be, if only ... ) are not met by the CentOS core team, are simply making noise here -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] xferlog not rotating.
On Sat, 21 May 2011, Lamar Owen wrote: Wait a cotton-picking minute. Why is vsftpd writing to /var/log/xferlog in the first place, and not /var/log/vsftpd.log? early in the thread, it was clear from a reply's content that a locally installed 'ftpd' and not the CentOS vsftpd was being used -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] scheduling differences between CentOS 4 and CentOS 5?
On Fri, 20 May 2011, Matt Garman wrote: We have several latency-sensitive pipeline-style programs that have a measurable performance degredation when run on CentOS 5.x versus CentOS 4.x. By pipeline program, I mean one that has multiple threads. The mutiple threads work on shared data. Between each thread, there is a queue. So thread A gets data, pushes into Qab, thread B pulls from Qab, does some processing, then pushes into Qbc, thread C pulls from Qbc, etc. The initial data is from the network (generated by a 3rd party). We basically measure the time from when the data is received to when the last thread performs its task. In our application, we see an increase of anywhere from 20 to 50 microseconds when moving from CentOS 4 to CentOS 5. Anyone have any experience with this? Perhaps some more areas to investigate? We do procesing similar to this with financials markets datastreams. You do not say, but I assume you are blocking on a select, rather than polling [polling is bad here]. Also you do not say if all threds are under a common process' ownership. If not, mod complexity of debugging threading, you may want to do so I say this, because in our testing (both with all housed in a single process, and when using co-processes fed through an anaoymous pipe), we will occasionally get hit with a context or process switch, which messes up the latencies something fierce. An 'at' or 'cron' job firing off can ruin the day as well Also, system calls are to be avoided, as the timing on when (and if, and in what order) one gets returned to, is not something controllable in userspace Average latencies are not so meaningful here ... collecton of all dispatch and return data and explaining the outliers is probably a good place to continue with afer addresing the foregoing. graphviz, and gnuplot are lovely for doing this kind of visualization -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Thu, 19 May 2011, carlopmart wrote: Red_Hat_Enterprise_Linux_6_1_Released and look at all the anaconda related, and other fixes, that should have been in a dot zero release ... gee -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Thu, 19 May 2011, Brunner, Brian T. wrote:
herrold earlier:
and look at all the anaconda related, and other fixes, that
should have been in a dot zero release ... gee
Which means, that RHEL6.0 should have just now come out today; the
release called 6.0 was a teaser and a beta of the release called 6.1
which should have been called 6.0!
There is an old piece of wisdom in IT to avoid the public 'dot
zero' products so that some-one else gets to be the advance
guard scout (you know, the one who staggers back to base camp,
festooned wth arrows in him)
even if a vendor names its initial product 2.1, or 3.0.3, it
is still a 'dot zero' until eager and inadvertent public
release (and perhaps unknowing) 'gamma testers' ('They CAN'T
BE 'beta' testers -- we _did_ a beta') get fried a few times,
a la Dr Bruce Banner and his Gamma ray accident
-- Russ herrold
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[CentOS] OT: RHEL 6.1 is out
(possible duplicate -- the first post had some mal-formed headers that the MailMan should have rejected) On Thu, 19 May 2011, Markus Falb wrote: Oh Lord! If everyone would avoid 'dot.zero' products then no bugs would be discovered and no 'dot.one' product would be released. You basically tell me if I cant resist and try I am an idiot and are beta testing for you. So I am reacting and try to resist using 'dot.zero' hoping that you will do the beta tests for me instead. Please note that I have publicly confesssed here to running a local private testing build of the upstream's 6.0 sources, several times, and have the arrow collection in my pysche to show for it [this shows I am a glutton for punishment] But I am NOT running it production And I am not afraid of the planet running out of 'idiots' who will test -- the Lord seems to have created an endless supply of such, some of whom have been howling on the mailing lists, asking to have arrows shot at them by the CentOS team -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] OT: RHEL 6.1 is out
On Thu, 19 May 2011, Les Mikesell wrote: Everyone expected this from Red Hat before the 'EL' versions when publishing a free CD of community work was the way QA was done. (And if you've forgotten, go dig through some changelogs of that era to see just how bad things were and how much we gained from that process). But wasn't closing the process and letting 'experts' do that before shipping supposed to have improved things? You'll have to direct questions of the upstream's intent to the upstream -- Russ herrold ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
