I also booted the - no installed - centos7 and inserted the ISO into the virtual CD. Then (as your example had tray='open') I ejected the (Virtual) CD via `eject -m`. Now I have:
<disk type='file' device='cdrom'> <driver name='qemu' type='raw'/> <source file='/var/lib/libvirt/images/CentOS-7-x86_64-Minimal-2009.iso' index='3'/> <backingStore/> <target dev='hda' bus='ide' tray='open'/> <readonly/> <boot order='1'/> <alias name='ide0-0-0'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> Detaching in that state still works fine in both systems. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1930398 Title: libvirtd unable to execute QEMU command 'blockdev-remove-medium' To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1930398/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs