Your bug report #44956: Rebooting or powering down UEFI machine locks it up which was filed against the guix package, has been closed. The explanation is attached below, along with your original report. If you require more details, please reply to 44956@debbugs.gnu.org. -- 44956: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=44956 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems