Hi Maxime, sorry for this late reply! I solved my problem with an ugly workaround: installing the Debian provided guix package and temporarily using that updated daemon in the systemd service, so I was able to upgrade to an updated Guix (since the package in Debian is not up to date with upstream) Maxime Devos writes: > Giovanni Biscuolo schreef op do 24-03-2022 om 16:23 [+0100]: [...] >> I get the meaning of "stubbing" but I don't know how to code in Guile, >> sorry ? cannot help here > > Ok, I've tried something in the attached patch (completely untested). Meanwhile I applied the above workaround, I did not test your patch [...] >> Meanwhile is there anything I can do to upgrade my guix-damon (on >> foreign distro) > > What guix is the guix service using? It was version 1.0.0 > If it's /usr/bin/guix installed with the foreign distro's package > manager, you can do, in case of Debian, "sudo apt-get update && sudo > apt-get upgrade" No, I was not using the Debian provided package, I installed from the upstream Guix binary >> , I never upgraded my root default profile since I first >> installed Guix on this machine so now I'm stuck at [...] > > Suggestion: use your regular user's guix to upgrade root's guix: > > $ sudo -i "`which guix`" pull > > (this assumes the non-root user has a vaguely up-to-date guix) Wow! I did not get it before your suggestion! :-O IMHO this should be the default way to upgrade root's (or any othe user with an out of date Guix) guix-daemon installation [...] Bug closed, thanks! Gio' -- Giovanni Biscuolo Xelera IT Infrastructures