The same problem exist in 10.10 and John's posted workarounds are not working there. The only way I have managed to have the VM's shutdown is on halt/reboot is by installing molly-guard. Not a wholly satisfactory solution but at least it works.
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/350936 Title: Should shut down domains on system shutdown -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs