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[bug#41066] [PATCH] gnu: grub: Support for chain loading.
From: |
Stefan |
Subject: |
[bug#41066] [PATCH] gnu: grub: Support for chain loading. |
Date: |
Sun, 24 May 2020 15:21:03 +0200 |
Hi Danny!
> Am 24.05.2020 um 13:13 schrieb Danny Milosavljevic <address@hidden>:
>
> I guess it is possible to do it like that--and maybe we even should.
>
> But a collection of packages and accompanying setup is called a profile.
Good point.
> Maybe you'd rather want a bootloader profile instead of a bootloader
> package-of-packages.
>
> We do the same for kernel modules--it just creates a profile of all the
> kernel module packages using the procedure "profile-derivation" and then
> uses a profile hook to configure the whole thing.
>
> See also operating-system-directory-base-entries in gnu/system.scm for
> how this is done with kernel modules (the profile-derivation call).
>
> You could do something similar with multiple bootloaders that are chained
> together that make some kind of useful whole.
>
> A profile hook could then make sure that this collection of bootloaders
> actually makes sense and then chain them together in the right order,
> if any.
>
> What do you think?
I’m still a bloody newbie. This sounds like a huge rework, probably too huge
for me.
The biggest trouble from my point of view is that the bootloader installer
functions only get a <bootloader> argument, which internally only has a
<package> field. Then this <package> would need to be replaced by some kind of
<profile>.
My current solution provides a different package with the proper collection of
files to copy for the installer. That was quite easy – well, beside the problem
to tear in a plain-file, for which I needed the trick with the source field.
Bye
Stefan