Philip Woods skribis: > + guix-register -p /home/elzair/Development/scheme/guix/t-register-4387 > error: creating directory `/gnu': Permission denied Here ‘guix-register’ attempts to create /gnu/store if it doesn’t exist yet, hence this error (I don’t have this error on my machine because /gnu/store already exists.) Could you apply the patch below (with ‘patch -p1 < foo.patch’), and then run “make check TESTS=tests/guix-register.sh”, making sure that /gnu does *not* already exist?