* [PATCH v2] wic: squashfs does support partition uuid.
@ 2018-09-06 17:57 Emmanuel Roullit
0 siblings, 0 replies; only message in thread
From: Emmanuel Roullit @ 2018-09-06 17:57 UTC (permalink / raw)
To: openembedded-core
wic allows the user to create disk image and reference each created
partitions via its partition UUID.
squashfs does not support filesystem UUID but it does offer support for
partition UUID.
$ lsblk -o NAME,FSTYPE,UUID,PARTUUID
NAME FSTYPE UUID PARTUUID
sda
|-sda1 vfat 6078-ACD0 95aa4ffb-741d-4d99-adf6-0358bc890046
|-sda2 squashfs 7d46da2d-29cc-4d5a-9e39-d0381c4abb0c
|-sda3 squashfs d4a3e24e-410a-4f2c-8ad5-8f8321de177b
|-sda4 ext4 d72ec529-78e4-4cd3-b39b-781b6b1cb47c f3edc990-f4f6-4536-9587-44dae4ceb99f
`-sda5 ext4 a0b265aa-e935-40b8-9c6b-e9e58ad3890f 6e72ebaa-29ed-41cd-844c-3f76976cf41d
Modifying this constrain allows a user to create squashfs-based rootfs and boot
from them with such kernel argument 'root=PARTUUID=7d46da2d-29cc-4d5a-9e39-d0381c4abb0c'
Signed-off-by: Emmanuel Roullit <emmanuel.roullit@gmail.com>
---
scripts/lib/wic/ksparser.py | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/scripts/lib/wic/ksparser.py b/scripts/lib/wic/ksparser.py
index e590b2f..a5d2918 100644
--- a/scripts/lib/wic/ksparser.py
+++ b/scripts/lib/wic/ksparser.py
@@ -196,8 +196,8 @@ class KickStart():
raise KickStartError('%s:%d: %s' % \
(confpath, lineno, err))
if line.startswith('part'):
- # SquashFS does not support UUID
- if parsed.fstype == 'squashfs' and parsed.use_uuid:
+ # SquashFS does not support filesystem UUID
+ if parsed.fstype == 'squashfs' and parsed.fsuuid:
err = "%s:%d: SquashFS does not support UUID" \
% (confpath, lineno)
raise KickStartError(err)
--
2.7.4
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2018-09-06 17:57 [PATCH v2] wic: squashfs does support partition uuid Emmanuel Roullit
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