Hi Konrad, > I am trying to build/install Guix 0.13 from sources (git checkout), > using a binary installation of a slightly earlier Guix in a Ubuntu 16.04 > host system. Basically I am doing > > git checkout v0.13.0 > guix environment guix > make check > make install You did not run “./configure --localstatedir=/var”. In config.log you should see what file paths were detected for the tools that are used during the build. It could be that this is outdated and that you should reconfigure. -- Ricardo GPG: BCA6 89B6 3655 3801 C3C6 2150 197A 5888 235F ACAC https://elephly.net