KERNEL!="loop*|mmcblk*[0-9]|msblk*[0-9]|mspblk*[0-9]|nvme*|sd*|sr*|vd*|xvd*|bcache*|cciss*|dasd*", GOTO="persistent_storage_end" What exactly is the point of this line, compared to former 60-persistant-storage.rules? I think just adding hd* will work for existing domU.