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wic: Add --embed-rootfs argument

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This option adds the content of a rootfs on a specific location on the
rootfs.

It is very useful for making a partition that contains the rootfs for a
host and a target Eg:

/ -> Roofs for the host
/export/ -> Rootfs for the target (which will netboot)

Although today we support making a partition for "/export" this might
not be compatible with some upgrade systems, or we might be limited by
the number of partitions.

With this patch we can use something like:

part / --source rootfs --embed-rootfs target-image /export --embed-rootfs target-image2 /export2

on the .wks file.

(From OE-Core rev: efdcf94801f6abe8e4099e324d9a3deccd8d4384)

Signed-off-by: Ricardo Ribalda Delgado <ricardo@ribalda.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Ricardo Ribalda Delgado
2020-03-04 15:49:36 +01:00
committed by Richard Purdie
parent 6bac089383
commit 242412656b
4 changed files with 31 additions and 1 deletions
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1
scripts/lib/wic/ksparser.py
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@@ -138,6 +138,7 @@ class KickStart():
part.add_argument('--align', type=int)
part.add_argument('--exclude-path', nargs='+')
part.add_argument('--include-path', nargs='+')
part.add_argument('--embed-rootfs', nargs=2, action='append')
part.add_argument("--extra-space", type=sizetype)
part.add_argument('--fsoptions', dest='fsopts')
part.add_argument('--fstype', default='vfat',