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wic: fix generation of partition UUID 

Partition UUID for msdos partitioning is based on a 4 bytes long
system identifier. Wic uses random number to generate system
identifier. For the numbers starting with 0 partition uuid is
shorter, which makes wic images non-bootable as kernel expects
8 charactest in PARTUUID parameter.

Padded system identifier with '0' when generating partition UUID
to make it always 8 characters long. This should fix the boot
issue.

(From OE-Core rev: bdaba95af2b2c9174311374436f184d2a927f6f1)

Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ed Bartosh 2017-03-26 18:28:04 +03:00 committed by Richard Purdie
parent 6b210e74b7
commit 871363251a
1 changed files with 1 additions and 1 deletions
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2
scripts/lib/wic/plugins/imager/direct.py
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@ -323,7 +323,7 @@ class PartitionedImage():
if self.ptable_format == 'gpt':
part.uuid = str(uuid.uuid4())
else: # msdos partition table
part.uuid = '%0x-%02d' % (self.identifier, part.realnum)
part.uuid = '%08x-%02d' % (self.identifier, part.realnum)
def prepare(self, imager):
"""Prepare an image. Call prepare method of all image partitions."""