[gentoo-user] remote installation, dual boot
I plan to install a fresh gentoo linux in parallel to an existing SLES 10 server. The server runs with /boot and / on 2 raid1 devices, there is a large RAID6 array building the PV for several logical volumes with data on it. The idea is to have the server booted from live media (chroot does not work as the current kernel of SLES is too old [1] ) ... install the new gentoo-root into a new LV, set up dracut for an LVM-based root and place the new kernel and initrd into the existing /boot (with old grub currently). Should/could work, right? The extra kick (again): the server is ~600 km away from me ;-) I should keep up SLES as fallback as long as I got everything up and running in gentoo. The server is doing backups to a tape library and monitoring stuff via nagios ... the new feature to be enabled is KVM virtualization (yes, the CPU is supporting this). I have access via some KVM over IP so I can access the server console directly in case (choice of boot option, repairing stuff). Any particular tips for me? The grub installed is grub-0.97-16.27.1 (SLES-release). Is that expected to work with recent kernels/initrds? I assume. I won't touch partitions/RAIDs/bootloader for now ... these things might follow later when gentoo is working on the server. Thanks, Stefan [1] Linux version 2.6.16.60-0.66.1-smp
Re: [gentoo-user] remote installation, dual boot
On 23.04.2015 17:09, Mike Gilbert wrote: Some pointers: - Unpack your stage tarball. - Build the kernel and initramfs on an existing Gentoo system and copy them over. - Add the gentoo kernel and initramfs to menu.lst. - Clear out the root password in /etc/shadow. - Reboot the box. You can then log in as root on the console, configure networking, and run from there. hmm, yes, I see. I have a gentoo server there so I have a preparation machine at hand. I will see if I get that figured out ... got to get the kernel-options and dracut modules right. thanks, S
[gentoo-user] wicd not restarting after hibernation
On my amd64 laptop, on resume from hibernation, wicd almost always fails to restart. This problem goes back to when I set up the machine, over a year ago, but it seems to have gotten a lot worse in the last month or so. I'm using openrc and sys-power/hibernate-script. I run mostly stable; AFAIK stable everything to do with power management, init, and networking. I use stable gentoo-sources. AFAICS, resuming works normally except for wicd. The configuration for hibernate-script has: RestartServices fcron wicd When it wicd fails to start, in /var/log/messages I see entries like this: Apr 23 08:38:28 sepulchrave dbus[1369]: [system] Activating service name='org.wicd.daemon' (using servicehelper) Apr 23 08:38:28 sepulchrave dbus[1369]: [system] Activated service 'org.wicd.daemon' failed: Launch helper exited with unknown return code 1 `sudo /etc/init.d/wicd start` always works to get it going again. And on (re)boot, wicd starts fine.
Re: [gentoo-user] remote installation, dual boot
On 23.04.2015 17:43, Stefan G. Weichinger wrote: I will see if I get that figured out ... got to get the kernel-options and dracut modules right. first try started booting but couldn't mount rootfs ... and now the box hangs there and I can't press the power button (only PS/2 attached keyboard/mouse) got to wait for the folks there to come to work tmrw ;-)
Re: [gentoo-user] remote installation, dual boot
On Thu, Apr 23, 2015 at 10:49 AM, Stefan G. Weichinger li...@xunil.at wrote: I plan to install a fresh gentoo linux in parallel to an existing SLES 10 server. The server runs with /boot and / on 2 raid1 devices, there is a large RAID6 array building the PV for several logical volumes with data on it. The idea is to have the server booted from live media (chroot does not work as the current kernel of SLES is too old [1] ) ... install the new gentoo-root into a new LV, set up dracut for an LVM-based root and place the new kernel and initrd into the existing /boot (with old grub currently). You should be able to get away with not using a livecd: you don't really need to chroot to get an initial Gentoo system working, *especially if you have console access*. Some pointers: - Unpack your stage tarball. - Build the kernel and initramfs on an existing Gentoo system and copy them over. - Add the gentoo kernel and initramfs to menu.lst. - Clear out the root password in /etc/shadow. - Reboot the box. You can then log in as root on the console, configure networking, and run from there.
[gentoo-user] Re: How do kernel modules load automatically during boot? [SOLVED]
On 04/22/2015 12:17 PM, walt wrote: I just did a huge update on an older ~amd64 machine, and now only three out of a dozen or so kernel modules load during bootup, which leaves a lot of hardware in an unusable state. Thanks to everyone who replied. The infuriating thing about this problem is that I'm sure I went through the same thing a few years ago and then forgot about it: Somehow (probably something stupid I did) these two symlinks got deleted somewhere in the middle of the big update: #ls -l /lib lrwxrwxrwx 1 root root 5 Feb 17 05:11 /lib - lib64 #ls -l /usr/lib lrwxrwxrwx 1 root root 5 Jul 31 2013 /usr/lib - lib64 After that happened, emerge created real directories /lib and /usr/lib and put files there instead of in /lib64 and /usr/lib64 where they belong. I suppose I should be thankful that the machine still boots even as far as rescue mode. (I'm not thankful, but that's not your problem ;) Thanks again for your excellent questions. They always give me new ideas for debugging problems like this one.
[gentoo-user] Re: remote installation, dual boot
Stefan G. Weichinger lists at xunil.at writes: On 23.04.2015 17:43, Stefan G. Weichinger wrote: I will see if I get that figured out ... got to get the kernel-options and dracut modules right. first try started booting but couldn't mount rootfs ... and now the box hangs there and I can't press the power button (only PS/2 attached keyboard/mouse) got to wait for the folks there to come to work tmrw There are methods to get the console terminal session, remotely. One, is called netconsole [1]. I use to use this sort of thing decades ago. How it is currently supported and the associated codes (ssh) to use it remotely, I have not kept up with. Some headless embedded system still use this sort of thing; with holes punched in the routers/firewalls. I've also heard of folks setting up a serial console over serial-2-usb converter, like ftdi, and then making a terminal session connection form a remote cell phone to another cell phone, to tunnel an ascii terminal session. I've never done this, but I'd be really curious how somebody makes that sort of 9600 baud terminal connection to a remote router or server, via a serial/console port using cell phones as modems. hth, James [1] https://www.kernel.org/doc/Documentation/networking/netconsole.txt [2] http://www.mjmwired.net/kernel/Documentation/serial-console.txt
Re: [gentoo-user] Re: gcc-5.0 ?
Am Donnerstag, 23. April 2015, 07:51:30 schrieb james: I'll wait at least until there is an ebuild of some kind. Those folks (toolchain) that put out the 5.0.x builds should have one for 5.1 soon.. I do agree with the subliminal suggestion that I should find those gcc compile and install docs to read about the new options and feature and where I needed them turned off or on, regardless of how it is installed on my systems. thx James You may want to lurk on bug 547470 :) https://bugs.gentoo.org/show_bug.cgi?id=547470 -- Andreas K. Huettel Gentoo Linux developer (council, perl, libreoffice) dilfri...@gentoo.org http://www.akhuettel.de/
[gentoo-user] Re: gcc-5.0 ?
Stefan G. Weichinger lists at xunil.at writes: On 23.04.2015 10:12, Helmut Jarausch wrote: I've just renamed the gcc-6.0.0_alpha20150412.ebuild (the 6 must be typo) from toolchain overlay to gcc-5.1.0.ebuild which I have attached. It worked just fine here. very cool! thx. I now try to build gcc-5.1.0 with itself ... and maybe later I will try at system in a btrfs-subvolume. Hello Stephan, Very interesting. You do know that both cephfs-0.94 and gcc-5.1.x have support for RDMA. It should really speed up some applications, particularly if you are running Apache:(spark|storm) or other in-memory codes on top of Apache-mesos (ebuild in BGO). The recently released (portage)t dev-java/sbt has gotten me much further along toward a working apache-spark ebuild, also in BGO. So things are rocking for low-latency, HPCC in gentoo. I only regret that somebody smarter than me is doing all of this. NONE of the old gentoo linux cluster devs are much interested in putting together a gentoo cluster from 100% sources; and I find that most baffling, particularly Donnie Berkholz. Many are using clusters at their work, based on other distros but little effort is being expended to bring 100% source solutions for clustering to gentoo. I do find lots of solutions for containers on remote (vendor) clouds and binaries for hadoop and such. Nothing so that the rank and file gentoo communities can build their High Performance Computer Clusters, (HPCC) from 100% sources. Strange, real strange, at least from where I sit THANKS for the help. James James
Re: [gentoo-user] grep -lr ignoring subdirs that start with dot (.)?
On Thu, 23 Apr 2015 07:32:54 -0400, Tanstaafl wrote: What I'd like is the output you get with 'grep -ir searchstring .' which includes the line of text from each matching file that contains the searchstring, like this: ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S:Name asked me to approve Test PO 12036 this afternoon so she could see ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S:it in the system. In looking at Test PO 12033 12034 they show signed ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S:by me however I did not approve these test PO's only test PO 12036 - how ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S: Name asked me to approve Test PO 12036 this afternoon so she could but... What I'd like is for each output line showing the file-hit to be prefaced with at least the date/time of the file (permissions/owner etc would be ok too, but I at least need the date/time), like you get when doing an ls -al... Something like this? for i in $(grep -lr searchstring .);do ls -l $i grep -H searchstring $i done I'm sure you could format it better using the options from ls. -- Neil Bothwick I am McCoy of Bo...Damnit! I'm a doctor, not a collective! pgpXKjeFCOMq8.pgp Description: OpenPGP digital signature
Re: [gentoo-user] [SOLVED] Java VM and SDK: icedtea X oracle's
2015-04-23 10:52 GMT-03:00 J. Roeleveld jo...@antarean.org: On Thursday, April 23, 2015 08:41:42 AM Francisco Ares wrote: 2015-04-22 14:10 GMT-03:00 Francisco Ares fra...@gmail.com: snipped Thanks for the tip, gonna try to understand everything from that thread, but meanwhile I'm going to do what Alon has suggested. Best Regards, Francisco Hi, again. Both approaches have worked out. Masking Oracle's JDK and JRE was a good starting point, and later on, having icedtea-bin and icedtea-web marked as ~arch (and removing the mask for JDK and JRE) did the final trick. Thanks and Best Regards, Francisco If you really don't want the Oracle JDK/JRE, leave the mask in place. -- Joost Thank you. Francisco
Re: [gentoo-user] Re: remote installation, dual boot
On 23.04.2015 18:57, james wrote: Stefan G. Weichinger lists at xunil.at writes: On 23.04.2015 17:43, Stefan G. Weichinger wrote: I will see if I get that figured out ... got to get the kernel-options and dracut modules right. first try started booting but couldn't mount rootfs ... and now the box hangs there and I can't press the power button (only PS/2 attached keyboard/mouse) got to wait for the folks there to come to work tmrw There are methods to get the console terminal session, remotely. One, is called netconsole [1]. I use to use this sort of thing decades ago. How it is currently supported and the associated codes (ssh) to use it remotely, I have not kept up with. Some headless embedded system still use this sort of thing; with holes punched in the routers/firewalls. I've also heard of folks setting up a serial console over serial-2-usb converter, like ftdi, and then making a terminal session connection form a remote cell phone to another cell phone, to tunnel an ascii terminal session. I've never done this, but I'd be really curious how somebody makes that sort of 9600 baud terminal connection to a remote router or server, via a serial/console port using cell phones as modems. Thanks for the hint but for now I have to wait. When I think about I have to add several kernel-options to menu.lst: dracut has to assemble /dev/md3 at first (this is the single PV in the VG VG01) and /dev/VG01/genroot then is the filesystem with the new gentoo-rootfs I only added stuff like rd.md=1 etc ... I think I got the assembling wrong. And maybe even the root= option. We will see tmrw if I get in early from other jobs. Stefan
Re: [gentoo-user] xen on new install reboots by itself
hydra hydrapo...@gmail.com writes: You mean the documentation at Gentoo about Xen sucks or the upstream documentation? What information are you missing from there? Maybe we can add the missing pieces for Xen being more accessible and easier to use, what do you think? :) I mean the documentation they have on their wiki. It's a confusing mess referring to various version with which things are being done differently. Could you add missing pieces about why power management --- as in frequency scaling --- doesn't work and what to do about keeping the time in sync between all VMs when you find out that this doesn't work as the documentation would have you think it does? -- Again we must be afraid of speaking of daemons for fear that daemons might swallow us. Finally, this fear has become reasonable.
Re: [gentoo-user] xen on new install reboots by itself
J. Roeleveld jo...@antarean.org writes: On 8 April 2015 14:43:02 GMT-07:00, lee l...@yagibdah.de wrote: hydra hydrapo...@gmail.com writes: On Sat, Apr 4, 2015 at 3:20 PM, lee l...@yagibdah.de wrote: symack sym...@gmail.com writes: Other than that, unless you really do need full virtualization: I'm finding Linux containers to be far more manageable than virtual machines, and much more efficient. Can you please post some more details? About containers? There's very useful documentation about them like https://wiki.gentoo.org/wiki/LXC ... What can I say? Virtualization with xen is like juggling with a set of black boxes each of which aren't exactly accessible; the documentation sucks, it's hard work to get it running and likewise hard to maintain. I disagree. Been using Xen for over 10 years now and find it very easy to use. The documentation could be better on the Xen site itself, but there is plenty of decent documentation available via Google. Then we just disagree about this. Virtualization with containers is basically as simple as running just another daemon. Not quite. I use virtualization to minimizer the physical hardware. Xen is easy for that. Containers are what chroot jails should have been. But there is no simple method to set these up when security isolation is your goal. Containers or chroots? Which the better tool, or combination of tools is, depends on what you want to accomplish. You could use containers in a VM, too, or use virtualbox along with containers to run the odd VMs that require full virtualzation. Virtualbox is nice for a quick test. I wouldn't use it for production. Why not? -- Again we must be afraid of speaking of daemons for fear that daemons might swallow us. Finally, this fear has become reasonable.
Re: [gentoo-user] Re: gcc-5.0 ?
On 23.04.2015 19:18, james wrote: Stefan G. Weichinger lists at xunil.at writes: I now try to build gcc-5.1.0 with itself ... and maybe later I will try at system in a btrfs-subvolume. Hello Stephan, Very interesting. emerge -e @system didn't get very far in my btrfs-subvolume (a snapshot of my current rootfs). maybe a bit too early :-) (I didn't have the time to look into it closer) But I run a recent kernel compiled with gcc-5.1.0 now - $ cat /proc/version Linux version 4.0.0-gentoo (root@hiro) (gcc version 5.1.0 (Gentoo 5.1.0) ) #4 SMP Thu Apr 23 21:15:14 CEST 2015 I am sure it will enter portage soon ...
Re: [gentoo-user] Re: gcc-5.0 ?
On 23.04.2015 23:06, Stefan G. Weichinger wrote: I am sure it will enter portage soon ... btw ... there you go: https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/sys-devel/gcc/gcc-5.1.0.ebuild?view=markup
[gentoo-user] Installing python-2.6
I'm currently contributing to a python project still supporting python 2.6. Since python 2.6 is no more in portage tree, I currently have no way to run the unit tests locally. Is there an easy way to install python 2.6? I don't need other packages support for python 2.6, just a python 2.6 installation with pip and virtualenv, so I can run the unit tests locally.
Re: [gentoo-user] Installing python-2.6
On Thu, Apr 23, 2015 at 3:08 PM, Guillaume Poulin poulin.guilla...@gmail.com wrote: I'm currently contributing to a python project still supporting python 2.6. Since python 2.6 is no more in portage tree, I currently have no way to run the unit tests locally. Is there an easy way to install python 2.6? I don't need other packages support for python 2.6, just a python 2.6 installation with pip and virtualenv, so I can run the unit tests locally. I added python-2.6.9 back to the portage tree, but empty KEYWORDS. Sync your portage tree in around an hour and add the following to package.keywords: ~dev-lang/python-2.6.9 **
Re: [gentoo-user] Re: gcc-5.0 ?
On 04/23/2015 07:51:30 AM, james wrote:
Nikos Chantziaras realnc at gmail.com writes:
So is my best hope the toolchain repo ?
You can always compile and install locally in your $HOME directory.
5.1
was just released, so you can try that.
I hear you. It'd take me a long time to figure out the settings,
configs
and such. Beside I know that folks that do this sort of thing put
some time into learning the tricks.
I'll wait at least until there is an ebuild of some kind. Those folks
(toolchain) that put out the 5.0.x builds should have one for 5.1
soon.. I do agree with the subliminal suggestion that I should
find those gcc compile and install docs to read about the new options
and feature and where I needed them turned off or on, regardless of
how it is installed on my systems.
I've just renamed the gcc-6.0.0_alpha20150412.ebuild (the 6 must be typo) from
toolchain overlay
to gcc-5.1.0.ebuild which I have attached.
It worked just fine here.
Helmut
# Copyright 1999-2012 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Header: $
EAPI=5
GCC_FILESDIR=${PORTDIR}/sys-devel/gcc/files
inherit eutils toolchain
KEYWORDS=
IUSE=debug
RDEPEND=
DEPEND=${RDEPEND}
=${CATEGORY}/binutils-2.20
if [[ ${CATEGORY} != cross-* ]] ; then
PDEPEND=${PDEPEND} elibc_glibc? ( =sys-libs/glibc-2.12 )
fi
src_prepare() {
toolchain_src_prepare
use debug GCC_CHECKS_LIST=yes
}
Re: [gentoo-user] Re: gcc-5.0 ?
On 23.04.2015 10:12, Helmut Jarausch wrote: I've just renamed the gcc-6.0.0_alpha20150412.ebuild (the 6 must be typo) from toolchain overlay to gcc-5.1.0.ebuild which I have attached. It worked just fine here. same here, just a bit later ;-) I now try to build gcc-5.1.0 with itself ... and maybe later I will try @system in a btrfs-subvolume. just curious
Re: [gentoo-user] [SOLVED] Java VM and SDK: icedtea X oracle's
On Thursday, April 23, 2015 08:41:42 AM Francisco Ares wrote: 2015-04-22 14:10 GMT-03:00 Francisco Ares fra...@gmail.com: snipped Thanks for the tip, gonna try to understand everything from that thread, but meanwhile I'm going to do what Alon has suggested. Best Regards, Francisco Hi, again. Both approaches have worked out. Masking Oracle's JDK and JRE was a good starting point, and later on, having icedtea-bin and icedtea-web marked as ~arch (and removing the mask for JDK and JRE) did the final trick. Thanks and Best Regards, Francisco If you really don't want the Oracle JDK/JRE, leave the mask in place. -- Joost
Re: [gentoo-user] [SOLVED] Java VM and SDK: icedtea X oracle's
2015-04-22 14:10 GMT-03:00 Francisco Ares fra...@gmail.com: 2015-04-22 10:54 GMT-03:00 Neil Bothwick n...@digimed.co.uk: On Wed, 22 Apr 2015 10:34:05 -0300, Francisco Ares wrote: A few months ago I got rid of oracle's java jre and jdk in favor of icedtea. Now, when issuing an emerge -tpvuDN world, oracle's jre is about to be installed again on this system: See the thread from earlier this week stable java virtuals require unstable java packages. -- Neil Bothwick Mac screen message: Like, dude, something went wrong. Thanks for the tip, gonna try to understand everything from that thread, but meanwhile I'm going to do what Alon has suggested. Best Regards, Francisco Hi, again. Both approaches have worked out. Masking Oracle's JDK and JRE was a good starting point, and later on, having icedtea-bin and icedtea-web marked as ~arch (and removing the mask for JDK and JRE) did the final trick. Thanks and Best Regards, Francisco
Re: [gentoo-user] grep -lr ignoring subdirs that start with dot (.)?
On 4/17/2015 5:59 PM, Neil Bothwick n...@digimed.co.uk wrote: Since you want to search the entire contents f the current directory, there is no need to pass grep a list of directories (especially not an incomplete list), use grep -lr . Ok, thanks Neil, but this is still not what I'm looking for... here's a snip of what I got: ./user1/Maildir/.Sent/cur/1348064019.M219121P18374.mailhost.com,S=7615,W=7788:2,S ./user1/Maildir/.Sent/dovecot.index.cache ./user2/Maildir/cur/1348063111.Vfe02Ia7fe0eM242648.mailhost.com:2,S ./user2/Maildir/dovecot.index.cache What I'd like is the output you get with 'grep -ir searchstring .' which includes the line of text from each matching file that contains the searchstring, like this: ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S:Name asked me to approve Test PO 12036 this afternoon so she could see ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S:it in the system. In looking at Test PO 12033 12034 they show signed ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S:by me however I did not approve these test PO's only test PO 12036 - how ./user/Maildir/cur/1429731479.M511050P25876.hostname,S=3097,W=3185:2,S: Name asked me to approve Test PO 12036 this afternoon so she could but... What I'd like is for each output line showing the file-hit to be prefaced with at least the date/time of the file (permissions/owner etc would be ok too, but I at least need the date/time), like you get when doing an ls -al... Is this just not possible? Thanks again...
