Mailinglist Archive: opensuse-buildservice (88 mails)

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Re: [opensuse-buildservice] osc kvm builds walkthrough
  • From: Guillaume Gardet <guillaume.gardet@xxxxxxx>
  • Date: Mon, 10 Feb 2014 14:53:18 +0100
  • Message-id: <>

Le 07/02/2014 20:15, Wolfgang Rosenauer a écrit :
Am 22.01.2014 21:38, schrieb Adrian Schröter:
On Mittwoch, 22. Januar 2014, 20:44:01 wrote Wolfgang Rosenauer:

at some occasions I would have needed local osc builds on kvm because
shared memory restrictions in the buildroot.

I never got it to work though.
Is there any step by step documentation out there how I can do kvm based
local osc builds which covers everything from setting up kvm to getting
images (if needed but my earlier experiences suggested that)?
osc build --vm-type=kvm ...

should be enough by default. build will setup files which are used for
building as

Of course your system and kernel needs to support kvm.
Hmm, have 13.1 and kvm stuff installed but nothing else:

[ 22s] booting kvm ...
[ 22s] /usr/bin/qemu-kvm -no-reboot -nographic -vga none -net none
-cpu host -kernel /boot/vmlinuz -initrd /boot/initrd-3.11.6-4-desktop
-append root=/dev/sda panic=1 quiet no-kvmclock nmi_watchdog=0 rw
elevator=noop console=ttyS0 init=/.build/build -hda
/local/build/build-root/img -drive
file=/local/build/build-root/swap,if=ide,index=1,cache=unsafe -smp 4
[ 28s] [ 0.011000] Failed to access perfctr msr (MSR c0010001 is
[ 29s] [ 0.886400] microcode: CPU0: update failed for
[ 29s] [ 0.887375] microcode: CPU1: update failed for
[ 29s] [ 0.888472] microcode: CPU2: update failed for
[ 29s] [ 0.890662] microcode: CPU3: update failed for
[ 29s] Trying manual resume from
[ 29s] resume device
/dev/disk/by-id/ata-WDC_WD5000AAKS-00YGA0_WD-WCAS80531274-part2 not
found (ignoring)
[ 29s] Trying manual resume from
[ 29s] resume device
/dev/disk/by-id/ata-WDC_WD5000AAKS-00YGA0_WD-WCAS80531274-part2 not
found (ignoring)
[ 62s] Waiting for device /dev/sda to appear:
..............................Could not find /dev/sda.
[ 62s] Want me to fall back to
/dev/disk/by-id/ata-WDC_WD5000AAKS-00YGA0_WD-WCAS80531274-part6? (Y/n)
[ 71s] not found -- exiting to /usr/sbin/sulogin
[ 71s] Give root password for maintenance

You may need to generate an initrd for OSC. On my 12.2 host, I used:
mkinitrd -m "ext4 binfmt_misc virtio_pci virtio_blk" -k
/boot/vmlinuz-3.4.63-2.44-desktop -i /boot/initrd-3.4.63-2.44-desktop-virtio

You need to adjust kernel and initrd version for your host.

Then, osc will use this new initrd which should be fine.

In ~/.oscrc, I also set-up 'build-device' to a file. Not sure if it is


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