Please contact the owner of the PPA. It could also be helpful to test libvirt from the archive (1.2.12-0ubuntu2) and see if that also reproduces the startup error. If it does, then please reply here. (marking invalid as this bug is in a ppa version of the package)
** Changed in: libvirt (Ubuntu) Status: New => Invalid -- You received this bug notification because you are a member of Ubuntu Server Team, which is subscribed to libvirt in 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-server-bugs mailing list Ubuntu-server-bugs@lists.ubuntu.com Modify settings or unsubscribe at: https://lists.ubuntu.com/mailman/listinfo/ubuntu-server-bugs