bug#70480: Guix bios installation: Grub error: unknown filesystem

[Lars-Dominik Braun]

Hi,

>    Installing for i386-pc platform.
>    /gnu/store/li1ic17hz460vp1sg0cx2dwgw8q7i8pj-grub-2.06/sbin/grub-install: 
> error: unknown filesystem.

this should be fixed by 71210, which I just merged.

Lars