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{ config, pkgs, lib, ... }: let
cfg = config.boot.initrd.services.swraid;
in {
options.boot.initrd.services.swraid = {
enable = lib.mkEnableOption (lib.mdDoc "swraid support using mdadm") // {
description = ''
*This will only be used when systemd is used in stage 1.*
Whether to enable swraid support using mdadm.
'';
};
mdadmConf = lib.mkOption {
description = lib.mdDoc "Contents of {file}`/etc/mdadm.conf` in initrd.";
type = lib.types.lines;
default = "";
};
};
config = {
environment.systemPackages = [ pkgs.mdadm ];
services.udev.packages = [ pkgs.mdadm ];
systemd.packages = [ pkgs.mdadm ];
boot.initrd.availableKernelModules = lib.mkIf (config.boot.initrd.systemd.enable -> cfg.enable) [ "md_mod" "raid0" "raid1" "raid10" "raid456" ];
boot.initrd.extraUdevRulesCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
cp -v ${pkgs.mdadm}/lib/udev/rules.d/*.rules $out/
'';
boot.initrd.systemd = lib.mkIf cfg.enable {
contents."/etc/mdadm.conf" = lib.mkIf (cfg.mdadmConf != "") {
text = cfg.mdadmConf;
};
packages = [ pkgs.mdadm ];
initrdBin = [ pkgs.mdadm ];
};
boot.initrd.services.udev.packages = lib.mkIf cfg.enable [ pkgs.mdadm ];
};
}
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