[libvirt-users] Unable to switch ISO with virsh/kvm

I'd created a VM with "virsh create" that has a CD-ROM attached <disk type='file' device='cdrom'> <source file='/images/myiso_1.2.iso'/> <target dev='sdb' bus='scsi'/> <readonly/> <alias name='scsi0-0-1'/> <address type='drive' controller='0' bus='0' unit='1'/> </disk> Now I'd like to swap that iso out and mount a new one without taking down the guest. But it fails as follows: virsh detach-disk sles-11 sdb error: Failed to detach disk error: this function is not supported by the hypervisor: This type of device cannot be hot unplugged Attaching a new iso also fails. virsh attach-disk sles-11 /images/myiso_1.3,iso sdc --type cdrom --mode readonly error: Failed to attach disk error: internal error No device with bus 'scsi' and target 'sdc' I've tried all of the variations I can think of (including attach-device detach-device, ide vs scsi, block vs file, mounting an empty CDROM device, etc) and I can't get this to work. It does work when the VM is powered down, but I need to do the iso switch when the VM is up, which seems like pretty basic functionality if trying to install an OS that covers multiple ISOs. Is this expected to work? If so, any tips on what I'm doing wrong? Thanks. I'm running SLES 11 SP1 (beta) damkvm:/tmp # virsh --version 0.7.6 damkvm:/tmp # libvirtd --version libvirtd (libvirt) 0.7.6 damkvm:/tmp # virsh version Compiled against library: libvir 0.7.6 Using library: libvir 0.7.6 Using API: QEMU 0.7.6 Running hypervisor: QEMU 0.12.3 Don Morrison