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Re: [Xen-users] Used Opensuse Xen kernel in Ubuntu 12.04



I have follow instruction hereÂhttps://www.coolacid.net/articles/39-latest/150-getting-opensuse-kernel-to-work-on-ubuntuÂand download the opensuse xen kernel from here Âhttp://software.opensuse.org/package/kernel-xen. I used rpm2cpio, I extracted it by command :

rpm2cpio /path/to/file.rpm | cpio -i --make-directories

and there is two directories extracted, /boot and /lib. I copied this two into my / and update the initramfs.

update-initramfs -k [kernel name] -c

and update my grub

update-grub

shutdown my domU and start it again. I can see the kernel listed on my grub,Â

 pyGRUB Âversion 0.6
Âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ
Ââ Ubuntu, with Linux 3.7.10-1.1-xen                   Ââ
Ââ Ubuntu, with Linux 3.7.10-1.1-xen (recovery mode) Â Â Â Â Â Â Â Â Â Â Ââ
Ââ Ubuntu, with Linux 3.2.0-37-generic                  Ââ
Ââ Ubuntu, with Linux 3.2.0-37-generic (recovery mode) Â Â Â Â Â Â Â Â Â Ââ
Ââ Memory test (memtest86+) Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â â
Ââ Memory test (memtest86+, serial console 115200) Â Â Â Â Â Â Â Â Â Â Â Ââ
Ââ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Ââ
Ââ Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Ââ
Âââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââââ
  ÂUse the ^ and v keys to select which entry is highlighted.
  ÂPress enter to boot the selected OS, 'e' to edit the
  Âcommands before booting, 'a' to modify the kernel arguments
  Âbefore booting, or 'c' for a command line.

however when I choose this kernel version, there is some error below :

Started domain SystemHA_VM (id=6)
[ Â Â0.166271] PCI: Fatal: No config space access function found
[ Â Â0.168901] Unable to read sysrq code in control/sysrq
[ Â Â1.351079] i8042: No controller found
[ Â Â1.352001] /home/abuild/rpmbuild/BUILD/kernel-xen-3.7.10/linux-3.7/drivers/rtc/hctosys.c: unable to open rtc device (rtc0)


Gave up waiting for root device. ÂCommon problems:
Â- Boot args (cat /proc/cmdline)
 Â- Check rootdelay= (did the system wait long enough?)
 Â- Check root= (did the system wait for the right device?)
Â- Missing modules (cat /proc/modules; ls /dev)
ALERT! Â/dev/disk/by-uuid/f76e1730-ef98-43f3-ae37-caaff1dbe5c1 does not exist. ÂDropping to a shell!


BusyBox v1.18.5 (Ubuntu 1:1.18.5-1ubuntu4.1) built-in shell (ash)
Enter 'help' for a list of built-in commands.

(initramfs)
(initramfs)
(initramfs)

Do you have suggestion, I am still trying to fix it.

Regards,

Agya


On Fri, Apr 12, 2013 at 10:07 AM, agya naila <agya.naila@xxxxxxxxx> wrote:

On Thu, Apr 11, 2013 at 8:49 PM, jacek burghardt <jaceksburghardt@xxxxxxxxx> wrote:
Opensuse has git of kernel-source and if you checkout git then you can extract patchÂagainstÂ3.8.6.
Otherwise you need toÂhttp://www.g-loaded.eu/2008/01/28/how-to-extract-rpm-or-deb-packages/Âfollow this to extract kernel package and follow rest of directionsÂ

Â
Hi Jacek,

Thanks, if I want to modify my DomU kernel, actually right now I am using UbuntuÂ3.2.0-37-generic kernel on my DomU. does the step is similar. I found that I could downloaded opensuse kernel from this siteÂhttp://software.opensuse.org/package/kernel-xenÂthen with step from your link I could manage to make .deb package. Then what should I do, I am little bit worries if I damage my DomU. Please suggest.

Â

On Thu, Apr 11, 2013 at 12:41 PM, agya naila <agya.naila@xxxxxxxxx> wrote:


On Thu, Apr 11, 2013 at 8:39 PM, agya naila <agya.naila@xxxxxxxxx> wrote:
Hi all,

I am working on my server with Xen, I have installed xen 4.2.2 with Ubuntu 12.04 64 bit as Dom0 and domU. However I want to use Remus that will work efficient if the operating system have suspend event channel support. Opensuse has this ability in its kernel version. I read this blogÂhttps://www.coolacid.net/articlesÂhow ever it seem old and I can't find if he succeed install opensuse kernel in his system. Does anybody have experienced on this circumstance?

Best Regards,

Agya


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Regards,

Agya

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