liminix

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boot-extlinux.nix (1050B)

      1 {
      2   config,
      3   pkgs,
      4   lib,
      5   ...
      6 }:
      7 let
      8   inherit (lib)
      9     mkIf
     10     mkEnableOption
     11     concatStringsSep
     12     ;
     13   inherit (pkgs.pseudofile) dir symlink;
     14   cfg = config.boot.loader.extlinux;
     15   o = config.system.outputs;
     16   cmdline = concatStringsSep " " config.boot.commandLine;
     17   wantsDtb = config.hardware.dts ? src && config.hardware.dts.src != null;
     18 in
     19 {
     20   options.boot.loader.extlinux.enable = mkEnableOption "extlinux";
     21 
     22   config = mkIf cfg.enable {
     23     system.outputs.bootfiles = pkgs.runCommand "extlinux" { } ''
     24       mkdir $out
     25       cd $out
     26       ${if wantsDtb then "cp ${o.dtb} dtb" else "true"}
     27       cp ${o.initramfs} initramfs
     28       cp ${o.kernel.zImage} kernel
     29       mkdir extlinux
     30       cat > extlinux/extlinux.conf << _EOF
     31       menu title Liminix
     32       timeout 40
     33       label Liminix
     34         kernel /boot/kernel
     35         # initrd /boot/initramfs
     36         append ${cmdline} 
     37         ${if wantsDtb then "fdt /boot/dtb" else ""}
     38       _EOF
     39     '';
     40     filesystem = dir {
     41       boot = symlink config.system.outputs.bootfiles;
     42     };
     43   };
     44 }