@Doug I saw the same in a 12.04 to 14.04 upgrade, also had to edit the machine type. Other than that one edit, all of my VMs worked after the Trusty upgrade. Take note that this triggers Windows VMs to have to re- activate due to the changed 'hardware.'
But I think this bug is more about a live migration scenario between two virtual machine hosts, source on 12.04 and the destination running 14.04. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1291321 Title: migration fails between 12.04 Precise and 14.04 Trusty To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1291321/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs