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https://github.com/nix-community/disko
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add module
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198
README.md
198
README.md
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disko
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=====
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# disko
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nix-powered automatic disk partitioning
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nix-powered automatic disk partitioning. partition your disks declaratively NixOS style.
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Usage
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=====
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## Installing NixOS module
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Master Boot Record
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------------------
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This is how your iso configuation may look like
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You can use the NixOS module in one of the following ways:
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/etc/nixos/configuration.nix
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```nix
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{ pkgs, modulesPath, ... }:
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let
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disko = pkgs.callPackage (builtins.fetchGit {
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url = "https://github.com/nix-community/disko";
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ref = "master";
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}) {};
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cfg = {
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disk = {
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sda = {
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device = "/dev/sda";
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type = "device";
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content = {
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type = "table";
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format = "msdos";
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partitions = [
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{
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name = "root";
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type = "partition";
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part-type = "primary";
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start = "1M";
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end = "100%";
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bootable = true;
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content = {
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type = "filesystem";
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format = "ext4";
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mountpoint = "/";
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};
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}
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];
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};
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};
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### Flakes
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If you use nix flakes support:
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``` nix
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{
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inputs.disko.url = "github:nix-community/disko";
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inputs.disko.inputs.nixpkgs.follows = "nixpkgs";
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outputs = { self, nixpkgs, disko }: {
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# change `yourhostname` to your actual hostname
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nixosConfigurations.yourhostname = nixpkgs.lib.nixosSystem {
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# change to your system:
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system = "x86_64-linux";
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modules = [
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./configuration.nix
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disko.nixosModules.disko
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];
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};
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};
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in {
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imports = [
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(modulesPath + "/installer/cd-dvd/installation-cd-minimal.nix")
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];
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environment.systemPackages = with pkgs;[
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(pkgs.writeScriptBin "tsp-create" (disko.create cfg))
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(pkgs.writeScriptBin "tsp-mount" (disko.mount cfg))
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];
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## Optional: Automatically creates a service which runs at startup to perform the partitioning
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#systemd.services.install-to-hd = {
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# enable = true;
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# wantedBy = ["multi-user.target"];
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# after = ["getty@tty1.service" ];
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# serviceConfig = {
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# Type = "oneshot";
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# ExecStart = [ (disko.create cfg) (disk.mount cfg) ];
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# StandardInput = "null";
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# StandardOutput = "journal+console";
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# StandardError = "inherit";
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# };
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#};
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}
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```
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After `nixos-rebuild switch` this will add a `tsp-create` and a `tsp-mount`
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command:
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### [niv](https://github.com/nmattia/niv) (Current recommendation)
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First add it to niv:
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- **tsp-create**: creates & formats the partitions according to `tsp-disk.json`
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- **tsp-mount**: mounts the partitions to `/mnt`
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```console
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$ niv add nix-community/disko
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```
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GUID Partition Table, LVM and dm-crypt
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--------------------------------------
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See `examples/`
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Then add the following to your configuration.nix in the `imports` list:
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```nix
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{
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imports = [ "${(import ./nix/sources.nix).disko}/modules/disko.nix" ];
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}
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```
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### nix-channel
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As root run:
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```console
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$ nix-channel --add https://github.com/nix-community/disko/archive/main.tar.gz disko
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$ nix-channel --update
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```
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Then add the following to your configuration.nix in the `imports` list:
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```nix
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{
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imports = [ <disko/modules/disko.nix> ];
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}
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```
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### fetchTarball
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Add the following to your configuration.nix:
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``` nix
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{
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imports = [ "${builtins.fetchTarball "https://github.com/nix-community/disko/archive/main.tar.gz"}/modules/disko.nix" ];
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}
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```
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or with pinning:
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```nix
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{
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imports = let
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# replace this with an actual commit id or tag
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commit = "f2783a8ef91624b375a3cf665c3af4ac60b7c278";
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in [
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"${builtins.fetchTarball {
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url = "https://github.com/nix-community/disko/archive/${commit}.tar.gz";
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# replace this with an actual hash
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sha256 = "0000000000000000000000000000000000000000000000000000";
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}}/module.nix"
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];
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}
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```
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## Using the NixOS module
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```nix
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{
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# checkout the example folder for how to configure different diska layouts
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disko.devices = {
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disk.sda = {
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device = "/dev/sda";
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type = "disk";
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content = {
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type = "table";
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format = "gpt";
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partitions = [
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{
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type = "partition";
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name = "ESP";
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start = "1MiB";
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end = "100MiB";
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bootable = true;
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content = {
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type = "filesystem";
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format = "vfat";
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mountpoint = "/boot";
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};
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}
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{
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name = "root";
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type = "partition";
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start = "100MiB";
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end = "100%";
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part-type = "primary";
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bootable = true;
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content = {
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type = "filesystem";
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format = "ext4";
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mountpoint = "/";
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};
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}
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];
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};
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};
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};
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}
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```
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this will configure `fileSystems` and other required NixOS options to boot the specified configuration.
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If you are on an installer, you probably want to disable `enableConfig`.
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disko will create the scripts `disko-create` and `disko-mount` which can be used to create/mount the configured disk layout.
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inputs.nixpkgs.url = "github:NixOS/nixpkgs/nixos-unstable";
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outputs = { self, nixpkgs, ... }: {
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nixosModules.disko = import ./module.nix;
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lib = import ./. {
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inherit (nixpkgs) lib;
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};
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43
module.nix
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43
module.nix
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{ config, lib, pkgs, ... }:
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let
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types = import ./types.nix { inherit lib; };
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cfg = config.disko;
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in {
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options.disko = {
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devices = lib.mkOption {
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type = types.devices;
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};
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enableConfig = lib.mkOption {
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description = ''
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configure nixos with the specified devices
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should be true if the system is booted with those devices
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should be false on an installer image etc.
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'';
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type = lib.types.bool;
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default = true;
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};
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addScripts = lib.mkOption {
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description = ''
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add disko-create and disko-mount scripts to systemPackages.
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'';
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type = lib.types.bool;
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default = true;
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};
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};
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config = {
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environment.systemPackages = (lib.optionals cfg.addScripts [
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(pkgs.writers.writeDashBin "disko-create" ''
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export PATH=${lib.makeBinPath (types.diskoLib.packages cfg.devices pkgs)}
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${types.diskoLib.create cfg.devices}
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'')
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(pkgs.writers.writeDashBin "disko-mount" ''
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export PATH=${lib.makeBinPath (types.diskoLib.packages cfg.devices pkgs)}
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${types.diskoLib.mount cfg.devices}
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'')
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]) ++ lib.optionals cfg.enableConfig (types.diskoLib.packages cfg.devices pkgs);
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# Remember to add config keys here if they are added to types
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fileSystems = lib.mkIf cfg.enableConfig (lib.mkMerge (lib.catAttrs "fileSystems" (types.diskoLib.config cfg.devices)));
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boot = lib.mkIf cfg.enableConfig (lib.mkMerge (lib.catAttrs "boot" (types.diskoLib.config cfg.devices)));
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};
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}
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