We don't need to copy disk.info during live migration. The libvirt XML contains the authoritative information about the disk format during live migration. The destination host simply needs to re-generate disk.info based on the disk format listed in the XML of the incoming VM.
We don't need to copy disk.info during live migration. The libvirt XML contains the authoritative information about the disk format during live migration. The destination host simply needs to re-generate disk.info based on the disk format listed in the XML of the incoming VM.