On 06/16/2015 09:00 AM, Robert Nichols wrote:
LUKS physical volume UUIDs, actually. When you create a LUKS logical volume within that PV, it also has a UUID, and a filesystem within that LUKS LV will have its own UUID. These are all part of the partition's _content_. A GPT partition has its own UUID, independent of the partition's content. An MSDOS partition does not.
I obviously had LVM on my mind when I wrote that. Sorry. The principle still holds, though. A filesystem within that LUKS container has its own UUID, separate from the LUKS UUID.