I used your find command and copied the grub.cfg file into place. It "just
worked".  Cool indeed!  Practically speaking, I could copy the file into
place every time that I reconfigure the system.  But for bragging rights,
I've got to get it automated.  I'm reading through the code, looking for
the best approach.  I'm a clojure programmer by trade; scheme is new to me.

I think I will try to make a package for flashrom and the libreboot
utilities, but I like this solution of just copying a file into place.

On Wed, Apr 12, 2017 at 8:21 AM, Marius Bakke <mbakke@fastmail.com> wrote:

> Stephen Sloan <steve@stevesloan.com> writes:
>
> > I am looking for some advice.
> >
> > I'm am setting up a libreboot + whole disk encryption + guixsd laptop.
> > Libreboot has grub in the BIOS, which allows for encrypting the whole
> disk.
> >
> > According to the libreboot docs, I can make the grub config available at
> > /boot/grub/libreboot_grub.cfg and the grub installed on the BIOS will
> load
> > and use that config file.  I've installed guixsd with --no-grub, I have
> > libreboot installed, and the disk encrypted, now I just need to make it
> > bootable!
>
> Wow, cool!
>
> `guix system --no-grub` will actually build out grub.cfg in the store,
> just not write it to the actual bootloader configuration. So you can try
> to `find /gnu/store -maxdepth 1 -name '*grub.cfg'` and copy it in place.
>
> It will also print the location when running `reconfigure`:
>
> root@xbmc ~# guix system reconfigure --no-grub /etc/config.scm
> substitute: updating list of substitutes from '
> https://mirror.hydra.gnu.org'... 100.0%
> The following derivation will be built:
>    /gnu/store/dp0v27hgc93a18zva7wqnl5rl3h1yvm2-grub.cfg.drv
> /gnu/store/r2y4bn5p162pah9lqa3mqyplj09va65x-system
> /gnu/store/jnnzn804d2ss2vk7k8hxkzh07waj0x75-grub.cfg
>
> > I think I need to make the correct grub config file available at that
> > location whenever I reconfigure.  I can manage the coding, but I'd like
> > hints on the best way to go about this with guix.
>
> I think making the <grub-configuration> field take a "copy-only?" option
> would be a decent fix for now. Currently the build code expects to run
> "grub-install", look into gnu/system/grub.scm and gnu/build/install.scm
> for starters.
>
> > There are some other options I've considered.  I could reflash my BIOS as
> > part of the reconfiguration process.  Or maybe I could chain-load two
> grub
> > installations, possibly with an unencrypted /boot.
>
> We don't have libreboot in Guix yet, but the ability to install it at
> reconfigure time would be nice. Sounds risky, though :)
>