Re: [poky] execute pkg_postinst_ontarget when read-only-rootfs-delayed-postinsts is set for a read only rootfs

On Fri, 5 Jul 2024 at 15:58, Gassner, Tobias.ext via
lists.yoctoproject.org
<[email protected]> wrote:
> I looked into overlayfs.py but I'm not convinced that this is the right path. First of all, basically all relevant tests that could be used as a starting point use systemd as well which doesn't make them more generic compared to my test in runtime_test.py. Secondly, when I set IMAGE_FEATURES += "read-only-rootfs" in the test_correct_image_fstab test case, qemu also hangs during boot.

...

> /mnt/overlay is the mount point that is configured by the test. When I make the rootfs read only, the mount point can not be created and I get the error message. For a test, I changed the mount point to /tmp (which is writable even for a read-only rootfs), with that change, the system boots and the test passes.

I think these are the tests in the wrong class (OverlayFSTests). I was
referring to class OverlayFSEtcRunTimeTests and the tests in it (those
are specifically setting up /etc as the overlay and the rest of the
image as read only).

Wherever the test ends up, it needs to work in a way that allows
deleting the postinst.

Alex