If you booted a domain with a cdrom attached you may find that one day you want to change the image attached to this domain with out rebooting it. Libvirt provides a simple command called change-media to do this. virsh # help change-media NAME change-media - Change media of CD or floppy drive SYNOPSIS change-media <domain> <path> [<source>] [--eject] [--insert] [--update] [--current] [--live] [--c