Hello,
This could be fixed by 154a4e046281c28e39b5016e965d3d937a2ea4a1. Would it be possible for you to try to reproduce the issue with this installation image: https://ci.guix.gnu.org/download/331? It would also be great if you could switch to a TTY (cltr-alt-f3), run "fdisk -l" and report the output. Thanks for your help, Mathieu
