Hello, since dpkg 1.15, update-alternatives is more strict and forbids lots of silly operations that were previously accepted. Unfortunately improper usage of u-a in the past could lead to cruft files that cause bugs on upgrade. You have examples in #530633 and #531611.
| Setting up gnome-session (2.26.1-6) ... | Installing new version of config file /etc/gnome/defaults.list ... | update-alternatives: error: alternative x-session-manager.1.gz can't be slave of x-session-manager: it is a master alternative. Since alternatives are shared among numerous packages, it makes sense sometimes to do the corresponding cleanup directly in dpkg to avoid having to duplicate it in all the packages implementing the alternatives. I've done so for the two cases listed above but if you encounter other case where it makes sense to fix it in dpkg, please let us know. Cheers, -- Raphaël Hertzog Contribuez à Debian et gagnez un cahier de l'admin Debian Lenny : http://www.ouaza.com/wp/2009/03/02/contribuer-a-debian-gagner-un-livre/ -- To UNSUBSCRIBE, email to debian-x-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org