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[bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP.

From: Danny Milosavljevic
Subject: [bug#41011] [PATCH] gnu: grub: Support for network boot via TFTP.
Date: Mon, 14 Sep 2020 14:34:25 +0200

Hi Stefan,

On Sun, 13 Sep 2020 19:46:01 +0200
Stefan <> wrote:

> diff --git a/gnu/bootloader/grub.scm b/gnu/bootloader/grub.scm
> index e3febeefd0..552bc34f5a 100644
> --- a/gnu/bootloader/grub.scm
> +++ b/gnu/bootloader/grub.scm
> @@ -295,6 +300,9 @@ code."
>          ((? file-system-label? label)
>           (format #f "search --label --set ~a"
>                   (file-system-label->string label)))
> +        ((? (lambda (device)
> +              (and (string? device) (string-contains device ":/"))) nfs-uri)
> +         "set root=(tftp)")
>          ((or #f (? string?))
>           #~(format #f "search --file --set ~a" #$file)))))

After careful consideration, I've pushed this to guix master, with a big
comment in the source code as to why we are doing what we are doing.

I can see no downside to defaulting to TFTP for the time being.

I do wonder if there are cases now where Grub tries to use TFTP when the user
meant to boot locally--but nothing comes to mind. 

Thank you for your elaborative E-Mails.

I will still review the remainder.  Please take Efraim's comments into

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