Hello! I have a use case which I'm struggling to support with libvirt: saving a VM to a file, cloning it (which renames the VM), and restoring it.
My search revealed a number of tutorials for using virt-clone [1], but that doesn't seem to cover VMs which are _saved_ (only running or paused). [1] https://github.com/virt-manager/virt-manager/blob/main/virtinst/virtclone.py In a nutshell, I want to power on a VM and do some setup, then save its full state to disk (e.g., with virsh save). Finally I want to modify the XML to: - rename the VM - change which bridge its NICs are on (while maintaining mac addresses) - change the disk image to a copy (done while the VM is saved) But the restore operation fails because of a target domain name check implemented in virDomainDefCheckABIStabilityFlags(). I've debated how to best address this and I'm looking for your views. I suspect this call is there for a reason (which may still be relevant), although the name is clearly not part of the ABI; it's the host identifier for that domain and not guest-visible. My first stab at this is therefore just to drop this check (patch attached). I'm open to suggestions, for example by plumbing through a flag which makes the check optional. Please let me know how you prefer that I take this forward. Thanks, F. Felipe Franciosi (1): conf: remove domain name change check on CheckABI src/conf/domain_conf.c | 11 ----------- 1 file changed, 11 deletions(-) -- 2.39.5
