Linux supports root=PARTUUID=<partuuid> boot argument, so add
support for probing it. Compared to the fs UUID, the partition
UUID does not change when reformatting a partition.
For now, only disks using a GPT partition table are supported.
Signed-off-by: Jacob Kroon <jacob.kroon@gmail.com>
Reviewed-by: Paul Menzel <pmenzel@molgen.mpg.de>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
f2b9083f85
