75f6cd20da
grub. Its options are no more inside 'boot', but inside 'boot.loader.grub'.
I added a new bootloader configuration for nixos, generationsDir. It creates
/boot/default/{init,initrd,kernel,system} symlinks, and the same for the generations
in /boot/system-$gen/{init,initrd,kernel,system}.
I can program the u-boot loader to load /boot/default files always, and have
a minimal nixos boot loader installer functionality. Additionally, I can refer
to the other system generations easily, with a simple 'ls' in /boot.
svn path=/nixos/trunk/; revision=17460
140 lines
3.8 KiB
Nix
140 lines
3.8 KiB
Nix
{pkgs, config, ...}:
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###### interface
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let
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inherit (pkgs.lib) mkOption mkIf;
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options = {
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boot = {
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loader = {
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grub = {
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enable = mkOption {
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default = true;
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description = ''
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Whether to enable the GRUB boot loader.
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'';
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};
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grubDevice = mkOption {
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default = "";
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example = "/dev/hda";
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description = "
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The device on which the boot loader, Grub, will be installed.
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If empty, Grub won't be installed and it's your responsibility
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to make the system bootable.
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";
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};
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bootMount = mkOption {
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default = "";
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example = "(hd0,0)";
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description = "
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If the system partition may be wiped on reinstall, it is better
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to have /boot on a small partition. To do it, we need to explain
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to GRUB where the kernels live. Specify the partition here (in
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GRUB notation.
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";
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};
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configurationName = mkOption {
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default = "";
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example = "Stable 2.6.21";
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description = "
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Grub entry name instead of default.
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";
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};
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extraGrubEntries = mkOption {
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default = "";
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example = "
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title Windows
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chainloader (hd0,1)+1
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";
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description = "
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Any additional entries you want added to the Grub boot menu.
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";
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};
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extraGrubEntriesBeforeNixos = mkOption {
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default = false;
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description = "
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Wheter extraGrubEntries are put before the Nixos-default option
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";
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};
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grubSplashImage = mkOption {
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default = pkgs.fetchurl {
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url = http://www.gnome-look.org/CONTENT/content-files/36909-soft-tux.xpm.gz;
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sha256 = "14kqdx2lfqvh40h6fjjzqgff1mwk74dmbjvmqphi6azzra7z8d59";
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};
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example = null;
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description = "
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Background image used for Grub. It must be a 640x480,
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14-colour image in XPM format, optionally compressed with
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<command>gzip</command> or <command>bzip2</command>. Set to
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<literal>null</literal> to run Grub in text mode.
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";
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};
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configurationLimit = mkOption {
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default = 100;
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example = 120;
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description = "
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Maximum of configurations in boot menu. GRUB has problems when
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there are too many entries.
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";
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};
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copyKernels = mkOption {
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default = false;
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description = "
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Whether the Grub menu builder should copy kernels and initial
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ramdisks to /boot. This is necessary when /nix is on a
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different file system than /boot.
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";
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};
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};
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};
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};
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};
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in
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###### implementation
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let
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grubMenuBuilder = pkgs.substituteAll {
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src = ./grub-menu-builder.sh;
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isExecutable = true;
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inherit (pkgs) bash;
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path = [pkgs.coreutils pkgs.gnused pkgs.gnugrep];
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inherit (config.boot.loader.grub) copyKernels extraGrubEntries extraGrubEntriesBeforeNixos
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grubSplashImage bootMount configurationLimit;
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};
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in
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{
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require = [
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options
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# config.system.build
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# ../system/system-options.nix
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];
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system = mkIf config.boot.loader.grub.enable {
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build = {
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menuBuilder = grubMenuBuilder;
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};
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# Common attribute for boot loaders so only one of them can be
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# set at once
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boot.loader.id = "grub";
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boot.loader.kernelFile = "vmlinuz";
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};
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environment.extraPackages = mkIf config.boot.loader.grub.enable [ pkgs.grub ];
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# and many other things that have to be moved inside this file.
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}
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