Nid yw'r rhaniad a benodoch yn dechrau â "hd" neu "sd". Rhaid bod enw dyfais dilys a rhif rhaniad megis "hda1" neu "sda3" gyda rhaniadau.
The partition you specified does not begin with "hd" or "sd". Partitions must have a valid device name and partition number such as "hda1" or "sda3".