I'm also seeing this problem. It's related to apparmor
The uuid based profiles under /etc/apparmor.d/libvirt/ only include access to the overlay disk image. when I stop apparmor and restart libvirt-bin and qemu-kvm it's working -- kvm wont boot off a qcow2 overlay disk image https://bugs.launchpad.net/bugs/490264 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs