[yocto] Added package to RDEPENDS in packagegroup, image that IMAGE_INSTALLs packagegroup not rebuilt

[Vuille, Martin (Martin)]

I reported a similar issue a few days ago, but at the time I did not
know how to collect the relevant information to help diagnose the
issue. Hopefully I did better this time.

I have an image that lists several packagegroups in IMAGE_INSTALL.

I updated one of the packagegroups by adding a new package to
the list of RDEPENDS.

I ran bitbake <image> but do_rootfs was not run for the image. I
had built the package earlier so the only task to do should have been
do_rootfs. (When I saw this problem before and had not pre-built
the package, bitbake did build the package but then did not run the
image do_rootfs task).

In Toaster, looking at the tasks for the packagegroup recipe shows
Prebuilt for do_build and Covered for all others.

If I look at the list of packages for that image, the new package is not listed.

If I look at the list of runtime dependencies for the packagegroup in
the image, the new package is not listed.

bitbake <image> -g -u depexp does not show any dependency on the
new package, in fact it does not list the new package at all.

Neither does bitbake <packagegroup> -g -u depexp

I added a second extra (pre-built) package to the packagegroup and
ran bitbake again (with -DDD). The names of the two newly-added
packages are nowhere to be found in the debug output.

It's as though bitbake is not seeing my changes.

Any suggestions for debugging this further?

MV