Hi, I’m using a modular machine configuration, i.e. the scheme file returning the operating system definition imports several other custom modules with service definitions etc in the same directory. This does not work well with unattended upgrades. The attached patch allows adding search paths to the unattended upgrade service. I’m not sure this is the best solution though. Maybe the preferred way to add these modules is to a custom channel? The second patch changes the default channels to #f, i.e. the system default (/etc/guix/channels.scm), which feels more natural to me. Cheers, Lars -- Lars-Dominik Braun Wissenschaftlicher Mitarbeiter/Research Associate www.leibniz-psychology.org ZPID - Leibniz-Institut für Psychologie / ZPID - Leibniz Institute for Psychology Universitätsring 15 D-54296 Trier - Germany Tel.: +49–651–201-4964