Re: [OE-core] [PATCH 4/4] oe-selftest: overlayfs: Add a demo case for /etc

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

On Mon Dec 22, 2025 at 12:38 PM CET, Vyacheslav Yurkov via lists.openembedded.org wrote:
> From: Vyacheslav Yurkov <uvv.mail@gmail.com>
>
> /etc is a special directory. It's possible to create a mount unit for
> it, but many system services that start early at boot time will not
> rescan its content when you mount overlay on top. The added test case
> demonstrates this but adding a sample systemd service and enabling it in
> overlay.
>
> Signed-off-by: Vyacheslav Yurkov <uvv.mail@gmail.com>
> ---

Hi Vyacheslav,

Thanks for your patches.

It looks like the added test is failing on the autobuilder, on arm host
platform, with some wic related error:

2025-12-24 10:16:24,719 - oe-selftest - INFO - overlayfs.OverlayFSTests.test_etc_mount (subunit.RemotedTestCase)
2025-12-24 10:16:24,720 - oe-selftest - INFO -  ... FAIL
...
39519	/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/build-st-904882/tmp/work/qemuarm64-poky-linux/core-image-minimal/1.0/tmp-wic/boot.img
| ERROR: Couldn't find correct bootimg_dir, exiting
|
| WARNING: exit code 1 from a shell command.
NOTE: recipe core-image-minimal-1.0-r0: task do_image_wic: Failed
ERROR: Task (/srv/pokybuild/yocto-worker/oe-selftest-armhost/build/layers/openembedded-core/meta/recipes-core/images/core-image-minimal.bb:do_image_wic) failed with exit code '1'
NOTE: Tasks Summary: Attempted 5451 tasks of which 5354 didn't need to be rerun and 1 failed.
NOTE: The errors for this build are stored in /srv/pokybuild/yocto-worker/oe-selftest-armhost/build/build-st-904882/tmp/log/error-report/error_report_20251224101317.txt
You can send the errors to a reports server by running:
  send-error-report /srv/pokybuild/yocto-worker/oe-selftest-armhost/build/build-st-904882/tmp/log/error-report/error_report_20251224101317.txt [-s server]
NOTE: The contents of these logs will be posted in public if you use the above command with the default server. Please ensure you remove any identifying or proprietary information when prompted before sending.

Summary: 1 task failed:
  /srv/pokybuild/yocto-worker/oe-selftest-armhost/build/layers/openembedded-core/meta/recipes-core/images/core-image-minimal.bb:do_image_wic
    log: /srv/pokybuild/yocto-worker/oe-selftest-armhost/build/build-st-904882/tmp/work/qemuarm64-poky-linux/core-image-minimal/1.0/temp/log.do_image_wic.3087704
Summary: There was 1 ERROR message, returning a non-zero exit code.

https://autobuilder.yoctoproject.org/valkyrie/#/builders/23/builds/3043

Can you have a look at this?

Thanks,
Mathieu

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