[OE-core] [PATCH] wic: fix generation of partition UUID
Ed Bartosh
ed.bartosh at linux.intel.com
Sun Mar 26 15:28:04 UTC 2017
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.
Signed-off-by: Ed Bartosh <ed.bartosh at linux.intel.com>
---
scripts/lib/wic/plugins/imager/direct.py | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/scripts/lib/wic/plugins/imager/direct.py b/scripts/lib/wic/plugins/imager/direct.py
index 7d38ab3..67fd183 100644
--- a/scripts/lib/wic/plugins/imager/direct.py
+++ b/scripts/lib/wic/plugins/imager/direct.py
@@ -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."""
--
2.1.4
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