Found a very strange workaround. In this example the VM name is VZ02-zentyal
To reproduce: 1) save a copy of /etc/libvirt/qemu/VZ02-zentyal.xml 2) edit this file with sudo virsh edit VZ02-zentyal 3) add in the device stanza this definition (taken from a VM created with Kubuntu 11.04) <disk type='block' device='cdrom'> <driver name='qemu' type='raw'/> <target dev='hdc' bus='ide'/> <readonly/> <address type='drive' controller='0' bus='1' unit='0'/> </disk> <controller type='ide' index='0'> <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/> </controller> 4) reboot the VM -- ATTENTION now virt-manager crashes 5) reboot the host system 6) restore /etc/libvirt/qemu/VZ02-zentyal.xml from the saved copy 7) restart virt-manager -- Now virt-manager starts, the VM have an IDE bus and an IDE CD (strangely the /etc/libvirt/qemu/VZ02-zentyal.xml file is untouched and there is no cdrom stanza) -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/904627 Title: Can't connect CDROM from gui To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/virt-manager/+bug/904627/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs