From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jan <tona_kosmicznego_smiecia@interia.pl>
Subject: Re: Installing Guix System on an external hard drive
Date: Fri, 15 Nov 2019 17:23:35 +0100
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To: Marius Bakke <mbakke@fastmail.com>
Cc: help-guix@gnu.org

On Fri, 15 Nov 2019 15:49:23 +0100
Marius Bakke <mbakke@fastmail.com> wrote:

> Did you get the same error when you mounted at /boot/efi?
Yes.

> If you want the USB drive to be 'portable', i.e. not tied to a single
> system, you can not use 'grub-efi-bootloader'.  The reason is that
> grub-efi relies on updating UEFI firmware variables *on the running
> system*, to make the newly installed bootloader show up in the UEFI
> boot menu.
> 
> For the same reason, it is not possible to use it on a non-UEFI
> system.
> 
> It would be good to have a 'grub-standalone-bootloader' procedure that
> would write a self-contained UEFI firmware executable to a standard
> location, similar to what Guix does for disk images:
> 
> https://git.savannah.gnu.org/cgit/guix.git/tree/gnu/build/vm.scm?id=4dcf32b56b824efcdb181c9f4cc7ee6c8a0ba125#n399
> 
> Would you like to try implementing it?

Well, I could try as a Scheme learning exercise, but it would take me
some time, because I'm a fresh Guile coder and the only thing I know
about UEFI is that it has a buggy implementation on my motherboard and
GRUB goes to hell :)
Any hint where could I start?


Jan Wielkiewicz