I've ran into this issue twice now today. I can be creating VMs just fine and then go to create another one and it fails with this error. Rebooting fixed the issue the first time and I was able to create VMs again like normal but then for seemingly no reason I started getting the error again.
-- 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/632696 Title: libvirt won't start a VM with serial or console when apparmor is enabled -- 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