[OE-core] [PATCH v3] wic: ensure generated disk system identifier is non-zero

[Jonathan Liu]

Zero may be interpreted as no MBR signature present and another
partitioning program might install a new MBR signature.

Signed-off-by: Jonathan Liu <net147 at gmail.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 f20d8433f1..fe9b688ab0 100644
--- a/scripts/lib/wic/plugins/imager/direct.py
+++ b/scripts/lib/wic/plugins/imager/direct.py
@@ -297,7 +297,7 @@ class PartitionedImage():
                           # all partitions (in bytes)
         self.ptable_format = ptable_format  # Partition table format
         # Disk system identifier
-        self.identifier = int.from_bytes(os.urandom(4), 'little')
+        self.identifier = int.from_bytes(os.urandom(4), 'little') or 0xffffffff
 
         self.partitions = partitions
         self.partimages = []
-- 
2.13.2