>My question was, why did you use the PPA? A-ha. The answer is that i'm using it because first my host-system was Trusty and it had very old versions of VM-components. Then I upgraded to Utopic and I just kept using that PPA to have most fresh versions.
>Please contact the owner of the PPA. What to ask him? > It could also be helpful to test libvirt from the archive (1.2.12-0ubuntu2) > and see if that also reproduces the startup error. Just a minute... -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1419564 Title: VM fails to start: Launch helper exited with unknown return code 1 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1419564/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs