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wic: Add --no-fstab-update part option

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When embedding a rootfs image (e.g. 'rootfs-dir') as a partition we
might want to keep the stock fstab for that image. In such a case, use
this option to not update the fstab and use the stock one instead.

This option allows you to specify which partitions get the fstab
updated and which get the stock fstab.

The option matches the argument you can pass to wic itself where the
same action is performed but for all the partitions.

Example:
    part /export --source rootfs --rootfs-dir=hockeycam-image
--fstype=ext4 --label export --align 1024 --no-fstab-update

    part / --source rootfs --fstype=ext4 --label rootfs --align 1024

(From OE-Core rev: ab4c95af8ecd15dc136194ab761afae756db5803)

Signed-off-by: Daniel Gomez <daniel@qtec.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Daniel Gomez
2021-08-17 22:11:14 +02:00
committed by Richard Purdie
parent 901b82a4c8
commit 6fdbc5144f
4 changed files with 8 additions and 3 deletions
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scripts/lib/wic/plugins/source/rootfs.py
+1 -1
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@@ -218,7 +218,7 @@ class RootfsPlugin(SourcePlugin):
# Update part.has_fstab here as fstab may have been added or
# removed by the above modifications.
part.has_fstab = os.path.exists(os.path.join(new_rootfs, "etc/fstab"))
if part.update_fstab_in_rootfs and part.has_fstab:
if part.update_fstab_in_rootfs and part.has_fstab and not part.no_fstab_update:
fstab_path = os.path.join(new_rootfs, "etc/fstab")
# Assume that fstab should always be owned by root with fixed permissions
install_cmd = "install -m 0644 %s %s" % (part.updated_fstab_path, fstab_path)