Well these are the steps I took to get it to boot through guix system vm. The filesystem stuff gets overwritten by the routines in vm.scm, but it causes the services to fail to start.
>>> (name "Marc") >> >> doesn't like capitalized user-names > Is that not enforced by "guix system" ? > maybe it should ? This can also be easily verified using system vm, maybe it's a bug. But it causes a boot failure. I've never actually installed guixsd on real hardware... =)