Hi there After removing `gdm login` using a transformer and forget to modify/amend it into build-custom-services i break my system :
(define-public %dm/system-services (append (build-custom-services identity) (modify-services %desktop-services (delete gdm-service-type)))) My gnome crash, and when i even when i try to roll-back, it was impossible to login, my screen freeze at login/password, just before gnome start. Error in message : ul 4 17:44:11 localhost elogind[427]: New session c1 of user gdm. Jul 4 17:44:11 localhost gdm-session-worker: GLib-GObject: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Jul 4 17:44:11 localhost gdm: Gdm: GdmDisplay: Session never registered, failing Jul 4 17:44:11 localhost elogind[427]: Removed session c1. Jul 4 17:44:11 localhost gdm: Gdm: Child process -552 was already dead. Jul 4 17:44:11 localhost gdm: Gdm: GdmDisplay: Session never registered, failing Jul 4 17:44:11 localhost gdm: Gdm: Child process -552 was already dead. Removing /var/lib/gdm and mkdir gdm, rebooting with rollback solving the problem. during a guix system reconfigure