diff mbox series

wic: Fix usage of fstype=none in wic

Message ID 20230209173902.19980-1-pavel@zhukoff.net
State Accepted, archived
Commit 351cb64da37aa43113e5192605d04436652aa3b8
Headers show
Series wic: Fix usage of fstype=none in wic | expand

Commit Message

Pavel Zhukov Feb. 9, 2023, 5:39 p.m. UTC 
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.

Signed-off-by: Pavel Zhukov <pavel@zhukoff.net>
---
 scripts/lib/wic/partition.py | 5 +++++
 1 file changed, 5 insertions(+)
diff mbox series

Patch

diff --git a/scripts/lib/wic/partition.py b/scripts/lib/wic/partition.py
index 2a916e077c..382afa44bc 100644
--- a/scripts/lib/wic/partition.py
+++ b/scripts/lib/wic/partition.py
@@ -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):
         """