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Re: gnu/system/u-boot.scm

From: Danny Milosavljevic
Subject: Re: gnu/system/u-boot.scm
Date: Wed, 27 Jul 2016 11:32:48 +0200

Hi Ludo,

On Tue, 26 Jul 2016 22:49:35 +0200
address@hidden (Ludovic Courtès) wrote:

> >   (u-boot          u-boot-configuration-u-boot           ; package
> >                    (default (@ (gnu packages u-boot) (make-u-boot-package 
> > board))))  
> The default value has invalid syntax.  Should be simply:
>   (default (make-u-boot-package board))
> but I think this doesn’t work (‘board’ will be unbound; yeah,
> counter-intuitive.)
> You could instead do (default #f) and call ‘make-u-boot-package’ when
> that value is #f.
> > (define (eye-candy config root-fs system port)
> >   "dummy"
> >   (mlet* %store-monad ((image #f))
> >     (return (and image
> >                  #~(format #$port "")))))
> >  
> Simply remove it.  :-)

Yeah, but there's a 

  (mlet %store-monad ((sugar (eye-candy config store-fs system #~port)))

in the same file.

Can I remove that and #$sugar , too? Will it still work?

Also, I'm trying to s/grub.cfg/bootloader-configuration-file/g right now, but I 

(1) Whether it's possible to determine the basename of the config-file 
derivation in order to find out what bootloader to install
(2) Whether we want to do it that way


If so, we could have a install-bootloader routine that detects what the 
filename of the bootloader-configuration-file object is and then calls either 
install-grub or install-u-boot.

For an overview, I searched:

$ grep -rl grub . |grep '\.scm'

./gnu/build/vm.scm ; initialize-hard-disk has a key #:grub.cfg
./gnu/build/install.scm ; actual invocation of grub-install is here
./gnu/packages/admin.scm ; fine; some person is called grubb
./gnu/packages/grub.scm ; fine to use it in there
./gnu/system/grub.scm ; fine to use it in there
./gnu/system/vm.scm ; qemu-image has a key #:grub-configuration; source file 
hardcodes grub package (?)
./gnu/system/install.scm ; references grub package "mostly so xrefs to its 
manual work"
./gnu/system.scm ; needs to be adapted
./tests/system.scm ; harmless, just uses grub-configuration
./build-aux/hydra/demo-os.scm ; harmless, just uses grub-configuration
./guix/scripts/system.scm ; install-grub* needs to be generalized
./gnu.scm ; %public-modules grub for grub-configuration

Some of these would have to be adapted. 

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