No I did not play around with branches. What I did was - changed my config - reconfigured - rebooted - failed - booted second last config - fixed config - reconfigured - rebooted - OK - pulled - added cups - reconfigured ---->>> ERROR I just tried again. Did a GUIX_PROFILE="~/.guix-profile" && . "$GUIX_PROFILE/etc/profile" hash guix guix system reconfigure .../config.scm Same error. Is there a way to find out what goes wrong? And why I have something installed that is newer than what I get over the guix channel? -- Alex On Thu, Nov 25 2021, 06:53:59, Julien Lepiller wrote: > Hi Alexander, > > Since you did a guix pull, you should have a newer version of guix than you had before, unless you played with branches. So the downgrade is worrying and you were right to stop there. > > Note that running guix pull will update guix in a separate profile. Make sure it's loaded: that you have ~/.config/guix/current/bin in your path and that "type guix" is this path. If not, fix > your $PATH and run "hash guix" (no output) and check again. > > Note that, if you're running reconfigure as root (instead as with sudo) you'll need to pull and do the above as root, since each user has a different guix current profile. > > HTH! > > Le 25 novembre 2021 06:38:29 GMT-05:00, Alexander Asteroth a écrit : > > Dear all, > > I just wanted to install cups service on my guix system. I recofigured > the system without an error one hour ago (introduced seperate home > filesystem) and now, when I try to add the cups service (I did a guix > pull in between as well) I get: > > guix system: error: aborting reconfiguration because commit bd2aa8031babdca5f574fca52e025d6794f08d82 of channel 'guix' is not a descendant of > 7f974548ac20cab88b9bb589a5e1d85ee3b8d337 > hint: Use `--allow-downgrades' to force this downgrade. > > I have no clue what caused that error therefor I also don't know if it's > a good idea to allow downgrades. ... or what es to do to resolve the > issue. > > Cheers, > > Alex