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{ config, lib, pkgs, ... }:
with lib;
let
initScriptBuilder = pkgs.substituteAll {
src = ./init-script-builder.sh;
isExecutable = true;
inherit (pkgs) bash;
path = [pkgs.coreutils pkgs.gnused pkgs.gnugrep];
};
in
{
###### interface
options = {
boot.loader.initScript = {
enable = mkOption {
default = false;
type = types.bool;
description = ''
Some systems require a /sbin/init script which is started.
Or having it makes starting NixOS easier.
This applies to some kind of hosting services and user mode linux.
Additionally this script will create
/boot/init-other-configurations-contents.txt containing
contents of remaining configurations. You can copy paste them into
/sbin/init manually running a rescue system or such.
'';
};
};
};
###### implementation
config = mkIf config.boot.loader.initScript.enable {
system.build.installBootLoader = initScriptBuilder;
};
}
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