I can make it generic and follow this initiative http://www.freedesktop.org/software/systemd/man/os-release.html but that might cause problems on systems that would have 'os-release' and '<whateverelse>-release' files. So let's say on redhat there might be redhat-release and os-release files. Which one of that should have higher priority? I can just lock Cumulus Linux, but I would rather do the right thing and not a quick patch.