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wic: Fix usage of fstype=none in wic

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This allows to specify partition with fstype=none in the wks file
to have partition created but without following mkfs. The none fstype
is in the list already but the usage is not documented.

Example;
part /data --ondisk mmcblk0 --fstype=none  --align 4096 --fixed-size 512

will create a partition, filesystem may be created manualy on the host
or target and data will be preserved if the device is reflashed using
same wks. Works with bmaptool and probably does not work with dd.
Use case is persistent filesystem/data between reflashing of the image.

(From OE-Core rev: 351cb64da37aa43113e5192605d04436652aa3b8)

Signed-off-by: Pavel Zhukov <pavel@zhukoff.net>
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
This commit is contained in:
Pavel Zhukov 2023-02-09 18:39:03 +01:00 committed by Richard Purdie
parent 87f82469fc
commit 7f6a17a19c
1 changed files with 5 additions and 0 deletions
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5
scripts/lib/wic/partition.py
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@ -133,6 +133,8 @@ class Partition():
self.update_fstab_in_rootfs = True
if not self.source:
if self.fstype == "none":
return
if not self.size and not self.fixed_size:
raise WicError("The %s partition has a size of zero. Please "
"specify a non-zero --size/--fixed-size for that "
@ -405,6 +407,9 @@ class Partition():
(extraopts, self.fsuuid, rootfs, rootfs_dir)
exec_native_cmd(erofs_cmd, native_sysroot, pseudo=pseudo)
def prepare_empty_partition_none(self, rootfs, oe_builddir, native_sysroot):
pass
def prepare_empty_partition_ext(self, rootfs, oe_builddir,
native_sysroot):
"""