On Sat, 18 Sep 2010 17:15:44 +0000 (GMT) F B <fbabetz@xxxxxxxx> wrote: > Hi, > recently bin86 was removed from base-devel group but the unique way I > know to see this change is manually reading the pkg changelog in the > arch site. The problem is simple, how to detect this change in > pacman? For example, after a gnome upgrade, if a new package is added > to gnome group I can do: pacman -S --needed gnome to install the > missing package. But if a package is removed? How can I remove this > package that doesn't belong to a group anymore? I hope you understand > the question. Why not add metapackages (as for kde) for base, > base-devel, gnome and gnome-extra that doesn't have this problem? > > > Even if it was removed from the group, it could still be needed on your system. pacman -Qdt might be more useful than checking if package x is still in group y.