Re: Supergrub2disk helped me to have the choice at startup

[hub.lombard@free.fr]

Thank you Joshua :)

I'll try to adapt and inser this part of code into 'config.scm' by adding it under the following form (menu-enties (list (menu-entry...)))


----- Mail original -----
De: "Joshua Branson" <jbranso@dismail.de>
À: help-guix@gnu.org
Envoyé: Samedi 19 Janvier 2019 17:14:46
Objet: Re: Supergrub2disk helped me to have the choice at startup

hub.lombard@free.fr writes:

> Hi Guix :)
>
> A few days ago, I managed to install GuixSD 0.16 next to debian testing on a Packard Bell 'EasyNote TE' laptop.
> At reboot, Grub only offers GuixSD.
> To have the choice at startup, I used the 'supergrub2disk' that I downloaded and put on a USB key, positioned as the first boot device.
> SuperGRUB2disk gives me the choice between GuixSD and debian, and I can start either one without any problem.
>
> For now, I keep the USB key inserted in the computer and everything is fine, having nevertheless planned to address the problem of the restoration of GRUB. 

Hello,

Guix actually supports dual booting.

    (menu-entry
       (label "The Other Distro")
       (linux "/boot/old/vmlinux-2.6.32")
       (linux-arguments '("root=/dev/sda2"))
       (initrd "/boot/old/initrd"))

You can read the relevant information in the guix manual.  The chapter
is titled:  6.2.12 Bootloader Configuration.

>
> Would someone have a track that would enlighten me a bit?
>
> The GRUB originally installed on debian was on /dev/sda1
>
> I installed GuixSD on /dev/sda6 (my-root). As a result, the new GRUB is also on /dev/sda6. In 'config.scm', the bootloader points to /dev/sda
>
> (bootloader (grub-configuration (target "/dev/sda")))
> (file-systems (cons (file-system
>                       (device "my-root")
>                       (title 'label)
>                       (mount-point "/")
>                       (type "ext4"))
>                     %base-file-systems))
>
> Apart from this issue, I will focus on the importance of supergrub2disk in the case of an installation, especially for an end user like me.
>
> The first time it was after the installation of GuixSD 0.14 on my other laptop, it had worked as well and GRUB had been easy to restore.
>
> https://www.supergrubdisk.org/category/download/supergrub2diskdownload/
>
> Hoping it could be useful to other people ...
>
> Thank you in advance for your advice
>
> Hubert
>

-- 
Joshua Branson
Sent from Emacs and Gnus