Keeping just grub.cfg for a bootloader

Keeping just grub.cfg for a bootloader

[Vasilii Kolobkov]

Hello fellow Guix folks!

I'm planning a switch to a Guix system and have a question i couldn't
answer myself - is it possible to keep just the grub.cfg instead of full
GRUB install?  I'd rather have GRUB installed as a payload with Coreboot
and maintain it's configuration with `guix system`, so that the whole
disk could be encrypted.

I'd appreciate any tips!
-- 
Vasilii, pgp key 0xFF3C7272972E83A5

Re: Keeping just grub.cfg for a bootloader

[Raghav Gururajan]

> Hello fellow Guix folks!
> 
> I'm planning a switch to a Guix system and have a question i couldn't
> answer myself - is it possible to keep just the grub.cfg instead of full
> GRUB install? I'd rather have GRUB installed as a payload with Coreboot
> and maintain it's configuration with `guix system`, so that the whole
> disk could be encrypted.
> 
> I'd appreciate any tips!

Hello Vasilii!

I had this very same situation, as I am using libreboot which has grub payload. You can use the following code snippet for your "bootloader" part of your system configuration. 

	(bootloader
		(bootloader-configuration
			(bootloader
				(bootloader
					(inherit grub-bootloader)
					(installer #~(const #t))))))

This will generate and manage "grub.cfg" without installing grub bootloader on your disk. Thanks to Guix Folk, Clement, who helped me with that code.

Regards,
RG.