For Katello we would need to support package group categories in the TDL. Possible implementation would be with double at characters: <packages> <package name="walrus"/> <package name="@mammal"/> <package name="@@desktop"/> </packages> This is not needed for the 1.0.0 release, but we would like to have it in next releases. Although it is possible to get a list of groups within a category from Pulp, it would be cleaner to have the support in IF. If this is not possible for technical reasons, please close the bug and we will implement that in Katello. Related BZ: https://bugzilla.redhat.com/show_bug.cgi?id=788165
Setting low prio, I am not sure if group categories are supported by yum. http://fedoraproject.org/wiki/How_to_use_and_edit_comps.xml_for_package_groups
Those categories cannot be used in kickstarts. http://fedoraproject.org/wiki/Anaconda/Kickstart#Chapter_3._Package_Selection I doubt if they are any useful. Will probably close this bug. Sorry about that.
Ok we will remove this from Katello.