Re: [PATCH v3 1/2] wic: add --extra-partition-space option to set unused space

["Mathieu Dubois-Briand" <mathieu.dubois-briand@bootlin.com>]

On Mon Aug 11, 2025 at 3:48 PM CEST, pierre-loup.gosse wrote:
> From: Pierre-Loup GOSSE <pierre-loup.gosse@smile.fr>
>
> By default, the content of the partition is filled by the filesystem
> without leaving any unused free space. The --extra-space flag adds
> extra space to the filesystem size, not to the partition.
>
> Unused free space after the filesystem can be useful for some cases,
> such as encrypting a partition at runtime.
> With --extra-partition-space 32M, we ensure that the last 32M of the
> partition is unused: this space does not contain filesystem data and
> can store the LUKS2 header.
>
> The implementation sets a difference between the partition and
> filesystem size:
>   - With --fixed-size, the extra part space is removed from the
>     filesystem size.
>   - Otherwise (with or without --size flag), the extra part space is
>     added to the partition size.
>
> Signed-off-by: Pierre-Loup GOSSE <pierre-loup.gosse@smile.fr>
>
> CC: Alexander Kanavin <alex.kanavin@gmail.com>
> CC: Mathieu Dubois-Briand <mathieu.dubois-briand@bootlin.com>
> ---

Hi Pierre-Loup,

Thanks for the new version.

It looks like some of the tests are failing on the autobuilder:

2025-08-12 11:56:06,941 - oe-selftest - INFO - 9: 73/92 537/635 (83.03s) (0 failed) (wic.Wic2.test_extra_partition_space)
2025-08-12 11:56:06,941 - oe-selftest - INFO - testtools.testresult.real._StringException: Traceback (most recent call last):
  File "/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/meta/lib/oeqa/selftest/cases/wic.py", line 1375, in test_extra_partition_space
    self.assertNotEqual(p.status, 0, "wic exited successfully when an error was expected:\n%s" % p.output)
  File "/usr/lib/python3.12/unittest/case.py", line 894, in assertNotEqual
    raise self.failureException(msg)
AssertionError: 0 == 0 : wic exited successfully when an error was expected:
...
2025-08-12 12:40:46,950 - oe-selftest - INFO - FAIL: wic.Wic2.test_extra_partition_space (subunit.RemotedTestCase)

https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/2285
https://autobuilder.yoctoproject.org/valkyrie/#/builders/35/builds/2135
https://autobuilder.yoctoproject.org/valkyrie/#/builders/48/builds/2064

Can you have a look at the issue please?

-- 
Mathieu Dubois-Briand, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com