6d176afe5e
This module generates a /boot/extlinux/extlinux.conf bootloader configuration file that is supported by e.g. U-Boot: http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.distro;hb=refs/heads/master With this, all ARM boards supported by U-Boot can be booted in a common way (a single boot file generator, all boards booting via initrd like x86) and with same boot menu functionality as GRUB has. -- sample extlinux.conf file -- # Generated file, all changes will be lost on nixos-rebuild! # Change this to e.g. nixos-42 to temporarily boot to an older configuration. DEFAULT nixos-default TIMEOUT 50 LABEL nixos-default MENU LABEL NixOS - Default LINUX ../nixos/n7vxfk60nb5h0mcbhkwwxhcz2q2nvxzv-linux-4.1.0-rc3-cpufreq-zImage INITRD ../nixos/0ss2zs8sb6d1qn4gblxpwlxkfjsgs5f0-initrd-initrd FDTDIR ../nixos/n7vxfk60nb5h0mcbhkwwxhcz2q2nvxzv-linux-4.1.0-rc3-cpufreq-dtbs APPEND systemConfig=/nix/store/469qvr43ln8bfsnk5lzcz6m6jfcgdd4r-nixos-15.06.git.0b7a7a6M init=/nix/store/469qvr43ln8bfsnk5lzcz6m6jfcgdd4r-nixos-15.06.git.0b7a7a6M/init loglevel=8 console=ttyS0,115200n8 drm.debug=0xf LABEL nixos-71 MENU LABEL NixOS - Configuration 71 (2015-05-17 21:32 - 15.06.git.0b7a7a6M) LINUX ../nixos/n7vxfk60nb5h0mcbhkwwxhcz2q2nvxzv-linux-4.1.0-rc3-cpufreq-zImage INITRD ../nixos/0ss2zs8sb6d1qn4gblxpwlxkfjsgs5f0-initrd-initrd FDTDIR ../nixos/n7vxfk60nb5h0mcbhkwwxhcz2q2nvxzv-linux-4.1.0-rc3-cpufreq-dtbs APPEND systemConfig=/nix/store/469qvr43ln8bfsnk5lzcz6m6jfcgdd4r-nixos-15.06.git.0b7a7a6M init=/nix/store/469qvr43ln8bfsnk5lzcz6m6jfcgdd4r-nixos-15.06.git.0b7a7a6M/init loglevel=8 console=ttyS0,115200n8 drm.debug=0xf
45 lines
1.2 KiB
Nix
45 lines
1.2 KiB
Nix
{ config, lib, pkgs, ... }:
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with lib;
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let
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blCfg = config.boot.loader;
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cfg = blCfg.generic-extlinux-compatible;
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timeoutStr = if blCfg.timeout == null then "-1" else toString blCfg.timeout;
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builder = import ./extlinux-conf-builder.nix { inherit pkgs; };
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in
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{
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options = {
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boot.loader.generic-extlinux-compatible = {
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enable = mkOption {
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default = false;
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type = types.bool;
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description = ''
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Whether to generate an extlinux-compatible configuration file
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under <literal>/boot/extlinux.conf</literal>. For instance,
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U-Boot's generic distro boot support uses this file format.
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See <link xlink:href="http://git.denx.de/?p=u-boot.git;a=blob;f=doc/README.distro;hb=refs/heads/master">U-boot's documentation</link>
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for more information.
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'';
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};
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configurationLimit = mkOption {
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default = 20;
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example = 10;
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type = types.int;
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description = ''
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Maximum number of configurations in the boot menu.
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'';
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};
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};
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};
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config = mkIf cfg.enable {
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system.build.installBootLoader = "${builder} -g ${toString cfg.configurationLimit} -t ${timeoutStr} -c";
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system.boot.loader.id = "generic-extlinux-compatible";
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};
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}
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