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Re: Help with writing custom boot-loader configuration
From: |
Raghav Gururajan |
Subject: |
Re: Help with writing custom boot-loader configuration |
Date: |
Tue, 04 Jun 2019 11:40:40 -0400 |
> Putting together “exact Guile Scheme Code” is a lot to ask, but I can
> give you the following. You will have to adjust it appropriately if,
> for example, you are not using EFI. Note also that this is untested,
> but it is certainly close.
>
> What you want to do is create a custom bootloader that behaves just like
> GRUB except for the “installer”. In Guix, each bootloader is defined by
> a “bootloader” record. Part of that record is an “installer” field,
> which tells Guix how to install the bootloader onto the system.
>
> In addition to whatever else you use for your config file, you will need
> the following modules:
>
> (use-modules (gnu)
> (guix gexp))
>
> Now you can make your custom bootloader:
>
> (define grub-efi-bootloader-sans-install
> (bootloader
> (inherit grub-efi-bootloader)
> (installer #~(const #t))))
>
> Here, “(const #t)” tells Guile to create a function that always returns
> “#t”, which means “true”. The “#~” part introduces a G-expression,
> which is a handy way to write code that is intended to be run from the
> build environment.
>
> Finally, this should work as part of your configuration:
>
> (operating-system
> ;; ...
> (bootloader (bootloader-configuration
> ;; ...
> (bootloader grub-efi-bootloader-sans-install))
>
> That is, you need to change your “bootloader-configuration” to use your
> new custom bootloader.
>
> I hope that helps!
>
Thank you very much.
Regards,
RG.