On Thu, Feb 17, 2022 at 01:40:19AM +0100, Martin Castillo wrote: > Or can you only create an EFI system installation when you're already > running on one?
Sadly yes, because for EFI the boot information is not stored on disk but on the motherboard NVRAM. You need to boot with EFI to access it. Except for installs on removable media, but grub-efi-bootloader does not do that in Guix except for images. Regards, Florian