I'm wondering if there is any way through the groups mechanism to instruct yum to remove a particular software package. The modes for packagereq's "type" option appear to be mandatory, optional, and default. Having a type such as 'disallowed' could instruct yum to remove the listed package, for example. My desire in using the groups interface for this is that it can be easily customized per-machine on the server. With a 'disallowed' or 'remove' construct I could ensure only the packages I want are installed. -Kevin