Hello Ludovic, Apologies for the late reply. ludo@gnu.org (Ludovic Courtès) writes: [...] > Did you eventually gather more info? Yes, I got an undefined %iptables-rst variable in reconfigure output at first run. But at second run substitutions didn't work. GuixSD rebuilds the world. I didn't wait for this. I also didn't make guix pull. /tmp/guixsd ├── bootstrap.sh ├── iptables │   └── iptables.scm ├── panic.sh └── vm-image.scm 1 directory, 4 files