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doc: Update to the new 'grub-theme' procedure.

This is a follow-up commit to 9cdb10d52e34f7e8fa3b6238fe268646a4bbb877:
gnu: grub: Allow a PNG image and replace "aspect-ratio" with "resolution".

* doc/guix.texi (Bootloader Configuration): Describe and use the 'grub-theme'
procedure instead of the removed '%default-theme' variable.
wip-hurd-vm
Jan (janneke) Nieuwenhuizen 2 years ago
committed by Jan Nieuwenhuizen
parent
commit
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  1. 8
      doc/guix.texi

8
doc/guix.texi

@ -26983,14 +26983,14 @@ The GRUB @code{gfxmode} to set (a list of screen resolution strings, see
@end table
@end deftp
@defvr {Scheme Variable} %default-theme
This is the default GRUB theme used by the operating system if no
@deffn {Scheme Procedure} grub-theme
Return the default GRUB theme used by the operating system if no
@code{theme} field is specified in @code{bootloader-configuration}
record.
It comes with a fancy background image displaying the GNU and Guix
logos.
@end defvr
@end deffn
For example, to override the default resolution, you may use something
like
@ -27000,7 +27000,7 @@ like
(bootloader-configuration
;; @dots{}
(theme (grub-theme
(inherit %default-theme)
(inherit (grub-theme))
(gfxmode '("1024x786x32" "auto"))))))
@end lisp

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