I installed "Development Tools" with yum (`yum group install "Development Tools") and wanted to check it's installed. However, if I re-run the group install command I get:
Maybe run: yum groups mark install (see man yum) No packages in any requested group available to install or update.
so I assume the group has installed. However is there a way to check? E.g. listing the packages so I can tick a few off.