[CentOS-docs] Re : Wiki: Howtos/Virtualization/HyperV
Hello Ozy, having used Hyper-V for about two years, ever since it was 'published' in it's pre-release version immediately after release of Windows 2008 Server, I'm very glad you found the time to write a Wiki article on the issue. I remember the time drifts in particular, and wasting two whole days troubleshooting the problem until I finally got it resolved - and at that time, LIC was not even at version 2. However, I'm not here to chit-chat about my experiences with Hyper-V and CentOS, but to point out another issue (more of a pain in the butt) with this software setup, and that is - the rebuilding of the kernel modules every time you reinstall the kernel - something very recommended with EL distro such as CentOS. And, in this respect I'd like to add my 'contribution' by pointing you to the article addressing this: http://support.microsoft.com/kb/2387594 Yes, venturing to that domain does kinda make one a pilgrim in an unholy land,... But regardless, Hyper-V environment is no longer available to me - and hasn't been for the past 6 months or so, hence, I'm unable to test this for myself... but it's still one of the battles I don't consider won (by getting to the bottom of it) - and I think at least I got even. Having said that, I would really appreciate if you could review the article, got back to me with your findings, and if the content from this source could find it's way into this fine Wiki article of yours :) Kind regards, -- ***Milos Blazevic* Cert. No: 805010564450148 ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Homepage Request
Am 31.03.11 01:57, schrieb Jonathan Q.: Hi, I'd like to request the creation of a homepage. I'm working on an update of the Nagios HowTo, and I'd like to post it for review. My userid is JonathanQuist Go ahead. Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Homepage Request
Am 31.03.11 18:39, schrieb Jim Woods: Hello, I just want to create a homepage in the CentOS Wiki, Wiki name: JimWoods Go ahead. Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Contributing to Wiki
Am 31.03.11 18:52, schrieb Jim Woods: Hello again, I want to contribute to the Wiki, in the WebsiteVer2 section, What exactly there? You have seen the Thread(s) on the centos-devel mailing list? There will be an IRC meeting, probably next week - thread also is on the devel list. Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Re : Wiki: Howtos/Virtualization/HyperV
Am 02.04.11 15:15, schrieb Milos Blazevic: http://support.microsoft.com/kb/2387594 Having said that, I would really appreciate if you could review the article, got back to me with your findings, and if the content from this source could find it's way into this fine Wiki article of yours :) Does the license of that article allow that (I guess it could be rewritten)? :) I don't have a problem with the content (as dkms is available from trusted repositories), so I'd have no problem with the inclusion either. But yeah, maybe the main author of the article wants to chime in. Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] FOG on CentOS Wiki contribution suggestion?
Am 30.03.11 17:18, schrieb Alex Goffe: I have created the bulk of the document over at http://wiki.centos.org/AlexGoffe, This is a basic hand holding guide for a user to install fog 0.30 on centos 5.5, ideally aimed at users with basic Linux experience. Anyone with FOG experience please chip in with some further detail. One thing I've seen (just skimmed over it once): There's no need to explain on how to install rpmforge, it would be better to link ot the instructions which already are on the wiki, as those also explain the gotchas. Regards, Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Re : Wiki: Howtos/Virtualization/HyperV
Ralph Angenendt wrote: Am 02.04.11 15:15, schrieb Milos Blazevic: http://support.microsoft.com/kb/2387594 Having said that, I would really appreciate if you could review the article, got back to me with your findings, and if the content from this source could find it's way into this fine Wiki article of yours :) Does the license of that article allow that (I guess it could be rewritten)? :) I don't have a problem with the content (as dkms is available from trusted repositories), so I'd have no problem with the inclusion either. But yeah, maybe the main author of the article wants to chime in. Ralph ___ Damn, you're 100% right, Ralph... This definitely is something that should be taken into consideration. I really wouldn't like for this suggestion to cause any trouble to either CentOS Wiki or to Ozy... However, I sadly have to admitt my knowledge is rather poor on this matter. Hence, I'm hoping for someone with more experience in this legal stuff to chime in. (But then again, I really don't see the reason why would the Redmond heretics mind - maybe not if the original article is pointed out as a reference and source for some part of the CentOS Wiki article?) Regards, -- ***Milos Blazevic* RHCE Cert. No: 805010564450148 ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS-docs] Contributing to Wiki
Hi Ralph, I emailed you sometime last week off-list. I re-read the website version 2, next steps thread, tried to write an email in response, realized it was terribly too long, and figured I would edit the wiki pages or put up a couple of new ones. That's when I realized I had to ask for approval to contribute to the wiki. I did see a an initial note about an irc meeting, but no follow-ups. Looking now, I guess I better post my availability. I am GMT -7, so this may be a bit hard to schedule. Thanks, Jim On Sat, Apr 2, 2011 at 10:41 AM, Ralph Angenendt ralph.angene...@gmail.com wrote: Am 31.03.11 18:52, schrieb Jim Woods: Hello again, I want to contribute to the Wiki, in the WebsiteVer2 section, What exactly there? You have seen the Thread(s) on the centos-devel mailing list? There will be an IRC meeting, probably next week - thread also is on the devel list. Ralph ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs ___ CentOS-docs mailing list CentOS-docs@centos.org http://lists.centos.org/mailman/listinfo/centos-docs
Re: [CentOS] Door not hitting me on my way out
On Fri, 1 Apr 2011, John R Pierce wrote: On 04/01/11 6:54 PM, Digimer wrote: I would not fault someone for moving on, but I would when said person does so in a manner that only leads to unhelpful drama. yeah, seriously. call the WHAHmbulance. I don't see how this is helpful either. But that's the problem, there's no way anyone can help the releases moving forward... Good luck waiting :) -- -- dag wieers, d...@wieers.com, http://dag.wieers.com/ -- dagit linux solutions, i...@dagit.net, http://dagit.net/ [Any errors in spelling, tact or fact are transmission errors] ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Cent OS clustering and Support.
On 04/01/11 11:56, Kumar, Ranjan wrote: Hi, We are a Channel product team within LSI and we are trying to add Cent OS 5.5 to our compatibility Matrix. We found out that LSI currently has a relationship with CentOS for another project on the Internal Storage division but not with the OS Certification team. We require some information on CentOS which will help us plan the deliverables. And considering the timelines we need to deliver at it will be great if someone from CentOS can help us out in this regard. If anybody else also can answer these in the mailing list, we would be grateful. The questions that we have are as follows:- 1)Cluster Support : ·Does CentOS 5.5 provides native cluster support ? ·Is there any cluster suite available for CentOS 5.5 ? ·Can we use the cluster suite in CentOS 4 for 5.5. 2)Does CentOS have any self Certification tool which allows OEMs/Vendors to qualify the OS and post it in their compatibility matrix? One we start our qualification, we might need some help in resolving issues/defects on CentOS. Can we open a channel or Point of contact who will be able to help us out with such issues. I would also request to forward this email to the right forum if the mailing list we are sending to is not the appropriate one. Thanks and Regards. Kumar Ranjan LSI Technologies. Though I'm hijacking your thread and probably crossing some boundaries, however, since LSI is actively trying to enhance their products by testing compatibility with Linux distributions, I find this warranted: Can we look forward to something better than megacli for administering LSI based RAID controllers? I, and many others, have to work with LSI equipment daily and they are cumbersome to manage with the only viable tool, megacli. This tool is a very poorly documented - well let's be honest - undocumented piece of software. Yes, there is MSM (MegaRAID Storage Manager) but that's on the opposite end: it's large, uses java, and can't be run on headless servers. Another main problem with the megacli tool is the erratic way you have to specify command-line arguments and it doesn't always match what's in the help. Plus some examples wouldn't hurt. So, although LSI RAID controllers may be compatible with Linux in the sense that they work, by being able to access the configured RAID arrays, being able to administer them in a better way might make a more convicing argument for compatibility with Linux and eventually make the decision process of choosing LSI products easier. Thanks for listening, Glenn ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] cobbler installation of CentOS-5.5
Mark Pryor wrote: I'm trying to install CentOS-5.5 on my new HP micro-server, which has no CD drive. If all you want to do is kick-off an install via USB stick, you want http://mirrors.kernel.org/centos/5.5/os/x86_64/images/diskboot.img and use syslinux/memdisk to boot it on a vfat partition - syslinux.cfg label c564 kernel memdisk append initrd=/diskboot.img - snip you can dd the whole IMG to your stick, but its cleaner to collect such images and reference them in syslinux.cfg. To setup your stick to bootZZ #syslinux -s /dev/sda (unmounted USB disk) Thanks for the suggestion. But would that be simpler than transferring netinstall.iso to a USB stick? (I've always found the syslinux documentation bizarre, with its frequent references to floppies.) -- Timothy Murphy e-mail: gayleard /at/ eircom.net tel: +353-86-2336090, +353-1-2842366 s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Run from usb
Are it possible? With full root access? And gnome etc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Run from usb
You could try to be more specific ?? What do you want to run from USB ? And from what device ? On Sat, 2011-04-02 at 13:49 +0200, mattias wrote: Are it possible? With full root access? And gnome etc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Run from usb
I will run centos from usb like you can with e.g ubuntu A usb pendrive -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Michel van Deventer Sent: Saturday, April 02, 2011 2:03 PM To: centos@centos.org Subject: Re: [CentOS] Run from usb You could try to be more specific ?? What do you want to run from USB ? And from what device ? On Sat, 2011-04-02 at 13:49 +0200, mattias wrote: Are it possible? With full root access? And gnome etc ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Run from usb
Mattias wrote on Sat, 2 Apr 2011 14:19:17 +0200: I will run centos from usb like you can with e.g ubuntu A usb pendrive And what is the problem? This information is all available on the net. Kai ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] repeated local ephemeral to 80
well, first question: why don't you allow local access to port 80? There is no reason for that. This is httpd itself. Switch on the status page and then look for yourself. It's a well-known phenomenon since Apache 2.0 or 2.2. Kai ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] Best way to extend pv partition for LVM
I've replaced disks in a hardware RAID 1 with larger disks and enlarged the array. Now I have to find a way to tell LVM about the extra space. It seems there are two ways: 1. delete partition with fdisk and recreate a larger one. This is obviously a bit tricky if you do not want to lose data, I haven't investigated further yet. 2. create another partition on the disk, pvcreate another pv and then add it to the existing volume group with vgextend 3. a possible third way: increase the partition size. According to Google most if not all disk tools want to resize a file system as well and since there is no file system they will fail. I'm not sure about the status with this for the tools that come with CentOS (fdisk, parted, other?) No. 2 seems to be the easy way. Any objections? One I thought of: What does happen when I use No. 2 and I add new lvs? Can it happen that new lvs get spanned over both pvs or can I assure that a pv gets created using only one of the pvs? (I would prefer the latter, it doesn't matter if I use a few MB because of the ineffectiveness of allocation.) Thanks for recommendations. Kai ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Run from usb
A quick Google search on 'centos from usbstick' returned the following link (among others) : https://projects.centos.org/trac/livecd/wiki/ImageFlash Regards, Michel On Sat, 2011-04-02 at 14:53 +0200, Kai Schaetzl wrote: Mattias wrote on Sat, 2 Apr 2011 14:19:17 +0200: I will run centos from usb like you can with e.g ubuntu A usb pendrive And what is the problem? This information is all available on the net. Kai ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Run from usb
And this list are not only for problems -Original Message- From: centos-boun...@centos.org [mailto:centos-boun...@centos.org] On Behalf Of Kai Schaetzl Sent: Saturday, April 02, 2011 2:53 PM To: centos@centos.org Subject: Re: [CentOS] Run from usb Mattias wrote on Sat, 2 Apr 2011 14:19:17 +0200: I will run centos from usb like you can with e.g ubuntu A usb pendrive And what is the problem? This information is all available on the net. Kai ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Best way to extend pv partition for LVM
Kai Schaetzl wrote: I've replaced disks in a hardware RAID 1 with larger disks and enlarged the array. Now I have to find a way to tell LVM about the extra space. It seems there are two ways: 1. delete partition with fdisk and recreate a larger one. This is obviously a bit tricky if you do not want to lose data, I haven't investigated further yet. 2. create another partition on the disk, pvcreate another pv and then add it to the existing volume group with vgextend 3. a possible third way: increase the partition size. According to Google most if not all disk tools want to resize a file system as well and since there is no file system they will fail. I'm not sure about the status with this for the tools that come with CentOS (fdisk, parted, other?) No. 2 seems to be the easy way. Any objections? One I thought of: What does happen when I use No. 2 and I add new lvs? Can it happen that new lvs get spanned over both pvs or can I assure that a pv gets created using only one of the pvs? (I would prefer the latter, it doesn't matter if I use a few MB because of the ineffectiveness of allocation.) Thanks for recommendations. Kai Kai, I ran into the same circumstances a while back and, after a lot of consideration and testing, I chose door #2. It's the most expedient way to do it if you have no other resources available, but it does have some inefficiencies involved in it. You COULD use option #1, but it requires some additional resources and a LOT of shuffling. Specifically: - add an extra disk to the volume group (pvcreate, vgextend) - move the extents off of the old PVs onto the new PV using pvmove - drop the PVs from the old disks out of the VG - delete the PVs from the old disks - repartitioned the old disks - created PVs on the old disks - added the new/old PVs to the VG - move the extents from the temporary PV to the new/old PVs - remove the temporary disk from the VG, delete the temporary PV WAY too much shuffling and moving parts to suit me. The system never has to shut down, but performance can truly go into the dumper while pvmove is shuffling bits. I was originally thinking option #3 would be the best (i.e. most efficient) way, but on a test system I tried several times to extend the partitions to include the extra space and failed miserably. Like you, I got stalled at the point of trying to extend the partitions. parted seems to refuse to do so unless there is a supported filesystem on the partition, which does not seem to include LVM. If anybody has some hints about how to work around parted's reluctance to merely extend an arbitrary partition, I'd really like to know! I know I could use fdisk to delete the old partition and recreated it at a larger size, but that scares the bejesus out of my timid soul, having had power failures during critical operations on more than one occasion. -- Jay Leafey - jay.lea...@mindless.com Memphis, TN smime.p7s Description: S/MIME Cryptographic Signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Best way to extend pv partition for LVM
On Sat, 2011-04-02 at 12:02 -0500, Jay Leafey wrote: Kai Schaetzl wrote: I've replaced disks in a hardware RAID 1 with larger disks and enlarged the array. Now I have to find a way to tell LVM about the extra space. It seems there are two ways: 2. create another partition on the disk, pvcreate another pv and then add it to the existing volume group with vgextend No. 2 seems to be the easy way. Any objections? Correct. One I thought of: What does happen when I use No. 2 and I add new lvs? Can it happen that new lvs get spanned over both pvs or can I assure that a pv gets created using only one of the pvs? You can specify this [I believe] when you create an LV [which PVs are eligable]. I ran into the same circumstances a while back and, after a lot of consideration and testing, I chose door #2. It's the most expedient way to do it if you have no other resources available, but it does have some inefficiencies involved in it. +1 And doing so is the entire point of LVM. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] WD RE4-GP Dropped From Raid
Did you check if you already have the G05 firmware on all RE4-GP? The G04 firmware is not suitable for RAID. http://forum.qnap.com/viewtopic.php?f=182t=25057 GS -- Gerhard Schneider Institute of Lightweight Design and e-Mail: g...@ilsb.tuwien.ac.at Structural Biomechanics (E317) Tel.: +43 664 60 588 3171 Vienna University of Technology / Austria Fax:+43 1 58801 31799 A-1040 Wien, Gusshausstrasse 27-29 http://www.ilsb.tuwien.ac.at/~gs/ signature.asc Description: OpenPGP digital signature ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] WD RE4-GP Dropped From Raid
On Sat, 2 Apr 2011, Gerhard Schneider wrote: Did you check if you already have the G05 firmware on all RE4-GP? The G04 firmware is not suitable for RAID. http://forum.qnap.com/viewtopic.php?f=182t=25057 Yes all our drives are on G05 firmware. Cheers, Steve ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] Run from usb
mattias wrote: And this list are not only for problems (snip) Mattias wrote on Sat, 2 Apr 2011 14:19:17 +0200: I will run centos from usb like you can with e.g ubuntu A usb pendrive And what is the problem? This information is all available on the net. Kai Correct, Mattias. But, your lack of effort makes it a problem. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
[CentOS] ZFS @ centOS
I have trouble finding definitive information about this. I am considering the use of SME 7.5.1 (centOS based) for my server needs, but I do want to use ZFS and I thus far I have only found information about the ZFS-Fuse implementation and unclear hints that there is another way. Phoronix reported that http://kqinfotech.com/ would release some form of ZFS for the kernel but I have found nothing. Can so. tell me if fuse-ZFS is more trouble than it's worth? Thanks in adv. Dawide ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ZFS @ centOS
Can so. tell me if fuse-ZFS is more trouble than it's worth? I've tried both fuse-ZFS, and also zfs installed from rpm's on zfsonlinux.org. Both on centos 5.5. fuse-ZFS is more polished, but cut write speeds in half on my raid 5. I ended up going ext4. SME Server is great by the way - been using it for years. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ZFS @ centOS
On 04/02/11 1:54 PM, Dawid Horacio Golebiewski wrote: I have trouble finding definitive information about this. I am considering the use of SME 7.5.1 (centOS based) for my server needs, but I do want to use ZFS and I thus far I have only found information about the ZFS-Fuse implementation and unclear hints that there is another way. Phoronix reported that http://kqinfotech.com/ would release some form of ZFS for the kernel but I have found nothing. Can so. tell me if fuse-ZFS is more trouble than it's worth? ZFS isn't GPL, therefore can't be integrated into the kernel where a file system belongs, therefore is pretty much relegated to user space (fuse), and its just not very well supported on Linux. If you really want to use ZFS, I'd suggest using Solaris or one of its derivatives (OpenIndiana, etc) where its native. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ZFS @ centOS
I pondered Solaris for some time, but as I do not intend to build the OS from scratch and nexenta was to GUIed for me I started researching SME. What puzzled me is the theory and the practice: RAIDz is the best solution from a theoretical standpoint (maximum features available) but still raid 5,65+0 etc. are used. Why? Opensolaris supposedly stopped last February. John R Pierce schrieb: On 04/02/11 1:54 PM, Dawid Horacio Golebiewski wrote: I have trouble finding definitive information about this. I am considering the use of SME 7.5.1 (centOS based) for my server needs, but I do want to use ZFS and I thus far I have only found information about the ZFS-Fuse implementation and unclear hints that there is another way. Phoronix reported that http://kqinfotech.com/ would release some form of ZFS for the kernel but I have found nothing. Can so. tell me if fuse-ZFS is more trouble than it's worth? ZFS isn't GPL, therefore can't be integrated into the kernel where a file system belongs, therefore is pretty much relegated to user space (fuse), and its just not very well supported on Linux. If you really want to use ZFS, I'd suggest using Solaris or one of its derivatives (OpenIndiana, etc) where its native. ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
Re: [CentOS] ZFS @ centOS
On 04/02/11 2:28 PM, Dawid Horacy Golebiewski wrote: Opensolaris supposedly stopped last February. opensolaris has been superceded by openindiana (full distribution) and illumos (a community developed/supported kernel derived from opensolaris). ___ CentOS mailing list CentOS@centos.org http://lists.centos.org/mailman/listinfo/centos
