Hi,

On Tue, Oct 30, 2018 at 10:55:50PM +0530, Nalin Ranjan wrote:
>    Hi Guys,
>   Can you guys please help me with a bit of understanding?
>
>   I have a ThinkPad T410 on which I am trying to do this. Currently I have a
>   dual boot configuration running Ubuntu and Windows 7. Could that grub
>   install failure because of my /boot not being empty and formatted afresh
>   for GuixSD? If so, can anyone of you please help me in figuring out how to
>   install GuixSD alongside those existing ones(other distros plus special
>   Mr. Windows)? Do I need to reformat my /boot to make it fresh so that Grub
>   install from GuixSD installation could succeed(not sure if this is the
>   reason for failure).  if a reformatting is imminent, what will you suggest
>   to do on case I just need to recover my old stuff?

I can share my solution. I am running dual boot with openSUSE and
GuixSD. GRUB is managed by openSUSE and it sourcing GuixSD
configuration from /boot on GuixSD partition. That brings Guix menu
entries to the GRUB.

In my system configuration I have this hack I found somewhere:

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

so it doesn't install bootloader at all.

My usecase is a bit special because I am using LUKS and unlock it on
bootloader level.

If you want your bootloader to be managed by GuixSD, just follow
corresponding part of Guix manual:

  https://www.gnu.org/software/guix/manual/en/html_node/Bootloader-Configuration.html


Best regards,

S_W