try to disable ipv6 support than allready disabled on kernel option

[GoorMooon]

Description: Ubuntu 9.10
Release: 9.10

libvirt-bin:
  Installed: 0.7.0-1ubuntu12
  Candidate: 0.7.0-1ubuntu12
  Version table:
 *** 0.7.0-1ubuntu12 0
        500 http://il.archive.ubuntu.com karmic/main Packages
        100 /var/lib/dpkg/status

i try to start network:
virsh network-start default

and get following error:
Connecting to uri: qemu:///system
error: Failed to start network default
error: cannot enable /proc/sys/net/ipv6/conf/virbr0/disable_ipv6: No such file or directory

i disable ipv6 support in kernel boot options:
ipv6.disable=1

I found patch on libvir-list:
http://<email address hidden>/msg15582.html

[Chuck Short (zulcss)]

Thanks for the bug report, I have verified this patch hasnt made it into karmic. But it will be probably fixed in lucid:

http://libvirt.org/git/?p=libvirt.git;a=commit;h=f5a8f969dd92ec2744e1eec5d35288d5fbcded22

This might be a good candidate for an SRU.

Regards
chuck

[Sebastian Otaegui (feniix)]

If anybody is interested in testing, I have created this ppa
https://launchpad.net/~feniix/+archive/libvirt
only change is I added the patch mentioned by Chuck Short

[GoorMooon (goormoon)]

Thanks for ppa i tested this fix
and bug is gone

Regards
Roman

[Jamie Strandboge (jdstrand)]

This should be fixed in the the development release, 10.04 LTS, which has libvirt 0.7.5-5ubuntu15.