Hi Mortimer, Thanks for reporting these issues. The “Unable to locale keymap update file” presumably occurs when tryingto restart the installer after a failed install, which is unfortunatelynot possible so far: https://issues.guix.info/issue/35543. Your screenshots also show that the ‘xlockmore’ package couldn’t bebuilt, specifically derivation/gnu/store/zvlbagr7vvawd0qk8444slrn8cnnamh6-xlockmore-5.56.drv.Unfortunately, I do not know why that happens; the exact same packagebuilds fine for me. The last screenshot (where we can see “/bin/sh: Command not found”, andwhich ends with a “root@gnu” prompt) looks interesting, but it lackscontext. What command did you type to obtain this output? Thanks,Ludo’.