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Merge pull request #40462 from samueldr/fix/grub-background

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Fixes grub splashImage documentation + implementation
This commit is contained in:
Graham Christensen 2018-05-23 21:36:06 -04:00 committed by GitHub
commit 290505bf1b
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2 changed files with 24 additions and 8 deletions
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18
nixos/modules/system/boot/loader/grub/grub.nix
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@ -308,10 +308,22 @@ in
type = types.nullOr types.path;
example = literalExample "./my-background.png";
description = ''
Background image used for GRUB. It must be a 640x480,
Background image used for GRUB.
Set to <literal>null</literal> to run GRUB in text mode.
<note><para>
For grub 1:
It must be a 640x480,
14-colour image in XPM format, optionally compressed with
<command>gzip</command> or <command>bzip2</command>. Set to
<literal>null</literal> to run GRUB in text mode.
<command>gzip</command> or <command>bzip2</command>.
</para></note>
<note><para>
For grub 2:
File must be one of .png, .tga, .jpg, or .jpeg. JPEG images must
not be progressive.
The image will be scaled if necessary to fit the screen.
</para></note>
'';
};

14
nixos/modules/system/boot/loader/grub/install-grub.pl
View File

@ -299,12 +299,16 @@ else {
copy $font, "$bootPath/converted-font.pf2" or die "cannot copy $font to $bootPath\n";
}
if ($splashImage) {
# FIXME: GRUB 1.97 doesn't resize the background image if it
# doesn't match the video resolution.
copy $splashImage, "$bootPath/background.png" or die "cannot copy $splashImage to $bootPath\n";
# Keeps the image's extension.
my ($filename, $dirs, $suffix) = fileparse($splashImage, qr"\..[^.]*$");
# The module for jpg is jpeg.
if ($suffix eq ".jpg") {
$suffix = ".jpeg";
}
copy $splashImage, "$bootPath/background$suffix" or die "cannot copy $splashImage to $bootPath\n";
$conf .= "
insmod png
if background_image " . $grubBoot->path . "/background.png; then
insmod " . substr($suffix, 1) . "
if background_image " . $grubBoot->path . "/background$suffix; then
set color_normal=white/black
set color_highlight=black/white
else