On Tue, 16 Jun 2015, Always Learning wrote:
But my point was M$ DOS partitions, not being GPT partitions, can have UUIDs. The original poster appeared to suggest that was not possible.
No, the partition there does not have a UUID. Run fdisk, create a partition, dd if=/dev/zero of=/dev/sda4
blkid
You'll see no UUID, as the partition does not provide a UUID, and there's nothing on it to provide a UUID. Format it, or make some swap space or whatever, and you get a UUID.
When I think I am mounting a M$ DOS partition, am I mounting a real partition or merely 'the file system' within that partition ? Some may think one can't have one without the other.
You never mount a partition, only a filesystem. The partition merely points you to where the filesystem is.
jh