> I can't seem to really figure out your answer, so I guess I'll just make > some testing on the behavior ;-) I've started relying heavily on groups for > a very simple task : "yum groupinstall Base Core" pulls in all the packages > added to the base system that are missing after a "yum upgrade" from a > distribution to another. Think selinux policy files, acl stuff etc. _very_ > convenient, I find. > maybe I misunderstood the question. my answer should go like this: the groups file as specified by the createrepo option can (more or less) be in any format, but for purposes of fedora/rhel I think it would be best to be in comps.xml/yumgroup.xml format. Until a standard for groups/component specifications can be decided upon, the comps.xml format is reasonable. to add groups to a rpm-metadata repository simply do: createrepo -g /path/to/comps.xml /path/to/repo then in /path/to/repo/repodata/ you'll find comps.xml copied there and your repomd.xml will have that information as well. yum will look for this in groups and merge multiple groups together across repositories. -sv
