rpm-ostree-2025.7 creates `rpc` group with wrong `gid 978`

[nikita-dubrovskii]

ext.config.files.fcos_groups fails because of wrong gid.

Despite /usr/lib/sysusers.d/10-static-extra.conf contains proper value g rpc 32, CoreOS system has 978:

[core@cosa-devsh ~]$ getent group rpc
rpc:x:978:

After some debugging found that during cosa build:

Checking out packages... done
⠁ Running systemd-sysusers...                                                                                                                                                                                                                                                                                                 
Creating group 'rpc' with GID 978.

Downgrading to rpm-ostree version 2025.6 workarounds it:

⠁ Running post scripts... systemd                          
systemd.post: Creating group 'rpc' with GID 32.         

....
$ cosa kola run ext.config.files.fcos_groups
=== RUN   ext.config.files.fcos_groups
--- PASS: ext.config.files.fcos_groups (26.37s)

[jlebon]

Likely a regression from #5334.
This should only be affecting F42+ since that's where the sysusers work landed.

[dustymabe]

Since that RPM is still in bodhi testing. I untagged rpm-ostree-2025.7 in the f41-coreos-continuous koji tag and started a new cosa build to workaround this issue for now.

[jlebon]

Since that RPM is still in bodhi testing. I untagged rpm-ostree-2025.7 in the f41-coreos-continuous koji tag and started a new cosa build to workaround this issue for now.

Ahhh... OK. That'll break openshift/os#1780 which is close I think but yeah OK, I guess we'll need another tag & cosa rebuild after we backport.