Hi Ludo,
> Great. Could you apply the following patch, run the daemon with: > > sudo -E ./pre-inst-env guix-daemon --build-users-group=… > > then run: > > guix gc -C42 Yes, all is good. I have re-built guix with your patch and started the daemon. Now 'guix gc' runs as expected: . . . deleted or invalidated more than 42 bytes; stopping deleting `/gnu/store/trash' deleting unused links... note: currently hard linking saves 3264.68 MiB guix gc: freed 0.91850 MiBs Many thanks! CentOS 7 will be around for a few years yet. Best regards, Paul.