Here are the instructions to use GFS repository through slackpkg+ 1. Download and install slackpkg+ package from http://slakfinder.org/slackpkg+/ 2. Add gfs on REPOPLUS line so that it will become like this REPOPLUS=( slackpkgplus alienbob restricted slacky gfs ) You may remove other repositories (except slackpkgplus) if you don't use it 3. Add gfs repository information and match it with your Slackware and GFS version, and your architecture Example: For Slackware 15.0 (64 bit) and GNOME 41.9: MIRRORPLUS['gfs']=https://slackware.uk/gfs/15.0/41.9/x86_64/ MIRRORPLUS['gfs']=https://reddoglinux.ddns.net/linux/gnome/41.x/x86_64/ For Slackware Current (64 bit) and GNOME 42.10: MIRRORPLUS['gfs']=https://slackware.uk/gfs/current/42.9/x86_64/ MIRRORPLUS['gfs']=https://reddoglinux.ddns.net/linux/gnome/42.x/x86_64/ For Slackware Current (64 bit) and GNOME 43.4: MIRRORPLUS['gfs']=https://slackware.uk/gfs/current/43.4/x86_64/ MIRRORPLUS['gfs']=https://reddoglinux.ddns.net/linux/gnome/43.x/x86_64/ 4. Run slackpkg update gpg && slackpkg update && slackpkg install gfs && slackpkg upgrade-all 5. You can start managing your GFS packages through slackpkg+