That is very odd. Unless /etc is a read-only filesystemd I don't see why root would be denied permission to write to that file, and there are no apparmor denials in the kernel log. Could you please attach the files
/etc/apt/sources.list /etc/apt/sources.list.d/* /var/log/apt/history.log /var/log/apt/term.log and show the result of ls -l /etc/libvirt cat /proc/self/mountinfo ** Changed in: libvirt (Ubuntu) Status: New => Incomplete -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1506378 Title: libvirt-bin configuration after installatioin fails To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1506378/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs