697312fb82
The default just recently changed in 23.11. Users that had swraid enabled implicitly by NixOS in previous releases got surprised by warnings even though they do not actually use software RAID. Fixes #254807
88 lines
2.8 KiB
Nix
88 lines
2.8 KiB
Nix
{ config, pkgs, lib, ... }: let
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cfg = config.boot.swraid;
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mdadm_conf = config.environment.etc."mdadm.conf";
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enable_implicitly_for_old_state_versions = lib.versionOlder config.system.stateVersion "23.11";
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minimum_config_is_set = config_text:
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(builtins.match ".*(MAILADDR|PROGRAM).*" mdadm_conf.text) != null;
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in {
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imports = [
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(lib.mkRenamedOptionModule [ "boot" "initrd" "services" "swraid" "enable" ] [ "boot" "swraid" "enable" ])
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(lib.mkRenamedOptionModule [ "boot" "initrd" "services" "swraid" "mdadmConf" ] [ "boot" "swraid" "mdadmConf" ])
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];
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options.boot.swraid = {
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enable = lib.mkEnableOption (lib.mdDoc "swraid support using mdadm") // {
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description = lib.mdDoc ''
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Whether to enable support for Linux MD RAID arrays.
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When this is enabled, mdadm will be added to the system path,
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and MD RAID arrays will be detected and activated
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automatically, both in stage-1 (initramfs) and in stage-2 (the
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final NixOS system).
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This should be enabled if you want to be able to access and/or
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boot from MD RAID arrays. {command}`nixos-generate-config`
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should detect it correctly in the standard installation
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procedure.
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'';
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default = enable_implicitly_for_old_state_versions;
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defaultText = lib.mdDoc "`true` if stateVersion is older than 23.11";
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};
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mdadmConf = lib.mkOption {
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description = lib.mdDoc "Contents of {file}`/etc/mdadm.conf`.";
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type = lib.types.lines;
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default = "";
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};
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};
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config = lib.mkIf cfg.enable {
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warnings = lib.mkIf
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( !enable_implicitly_for_old_state_versions && !minimum_config_is_set mdadm_conf)
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[ "mdadm: Neither MAILADDR nor PROGRAM has been set. This will cause the `mdmon` service to crash." ];
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environment.systemPackages = [ pkgs.mdadm ];
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environment.etc."mdadm.conf".text = lib.mkAfter cfg.mdadmConf;
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services.udev.packages = [ pkgs.mdadm ];
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systemd.packages = [ pkgs.mdadm ];
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boot.initrd = {
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availableKernelModules = [ "md_mod" "raid0" "raid1" "raid10" "raid456" ];
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extraUdevRulesCommands = lib.mkIf (!config.boot.initrd.systemd.enable) ''
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cp -v ${pkgs.mdadm}/lib/udev/rules.d/*.rules $out/
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'';
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extraUtilsCommands = ''
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# Add RAID mdadm tool.
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copy_bin_and_libs ${pkgs.mdadm}/sbin/mdadm
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copy_bin_and_libs ${pkgs.mdadm}/sbin/mdmon
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'';
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extraUtilsCommandsTest = ''
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$out/bin/mdadm --version
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'';
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extraFiles."/etc/mdadm.conf".source = pkgs.writeText "mdadm.conf" mdadm_conf.text;
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systemd = {
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contents."/etc/mdadm.conf".text = mdadm_conf.text;
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packages = [ pkgs.mdadm ];
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initrdBin = [ pkgs.mdadm ];
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};
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services.udev.packages = [ pkgs.mdadm ];
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};
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};
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}
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