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<!--
<!--
: <code>sed /mnt/etc/nixos/</code>
: <code></code>
<pre>
configuration.nix  machine.nix
</pre>
 
: <code>cat /mnt/etc/nixos/configuration.nix</code>
<pre>
# Edit this configuration file to define what should be installed on
# your system.  Help is available in the configuration.nix(5) man page
# and in the NixOS manual (accessible by running ‘nixos-help’).
{ config, lib, pkgs, modulesPath, ... }:
 
let
  zfsRoot.partitionScheme = {
    biosBoot = "-part5";
    efiBoot = "-part1";
    swap = "-part4";
    bootPool = "-part2";
    rootPool = "-part3";
  };
  zfsRoot.devNodes = "/dev/disk/by-id/"; # MUST have trailing slash! /dev/disk/by-id/
  zfsRoot.bootDevices = (import ./machine.nix).bootDevices;
  zfsRoot.mirroredEfi = "/boot/efis/";
 
in {
  # adjust according to your platform, such as
  imports = [
    # (modulesPath + "/profiles/qemu-guest.nix")
    # (modulesPath + "/profiles/all-hardware.nix")
    (modulesPath + "/installer/scan/not-detected.nix")
  ];
  systemd.services.zfs-mount.enable = false;
 
  # networking.hostName = "nixos"; # Define your hostname.
  # Pick only one of the below networking options.
  # networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.
  # networking.networkmanager.enable = true;  # Easiest to use and most distros use this by default.
 
  # Set your time zone.
  # time.timeZone = "Europe/Amsterdam";
 
  # Configure network proxy if necessary
  # networking.proxy.default = "http://user:password@proxy:port/";
  # networking.proxy.noProxy = "127.0.0.1,localhost,internal.domain";
 
  # Select internationalisation properties.
  # i18n.defaultLocale = "en_US.UTF-8";
  # console = {
  #  font = "Lat2-Terminus16";
  #  keyMap = "us";
  #  useXkbConfig = true; # use xkbOptions in tty.
  # };
 
  # Configure keymap in X11
  # services.xserver.layout = "us";
  # services.xserver.xkbOptions = {
  #  "eurosign:e";
  #  "caps:escape" # map caps to escape.
  # };
 
  # Enable CUPS to print documents.
  # services.printing.enable = true;
 
  # Enable sound.
  # sound.enable = true;
  # hardware.pulseaudio.enable = true;
 
  # Enable touchpad support (enabled default in most desktopManager).
 
  # Define a user account. Don't forget to set a password with ‘passwd’.
  # users.users.alice = {
  #  isNormalUser = true;
  #  extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
  #  packages = with pkgs; [
  #    firefox
  #    thunderbird
  #  ];
  # };
 
  # List packages installed in system profile. To search, run:
  # $ nix search wget
  environment.systemPackages = with pkgs;
    [
      #  vim
      ## Do not forget to add an editor to edit configuration.nix!
      ## The Nano editor is also installed by default.
      #  wget
      mg
    ];
 
  # Some programs need SUID wrappers, can be configured further or are
  # started in user sessions.
  # programs.mtr.enable = true;
  # programs.gnupg.agent = {
  #  enable = true;
  #  enableSSHSupport = true;
  # };
 
  # List services that you want to enable:
 
  # Enable the OpenSSH daemon.
  services.openssh.enable = false;
  users.users.root = {
    ##hash: mkpasswd -m SHA-512 -s
    initialHashedPassword = "$6$OYQ1J8P/eJcD.D/nAeF.Gq8IPRrZfu.EGZkYJ3kYpmzhTq1QNVwraZboxoGaQxVmMpEq.Zrz0bgV$Vm/oMUobWh7VpNYtt4baExd960";
    openssh.authorizedKeys.keys = [
    ];
  };
  programs.git.enable = true;
  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;
 
  # Copy the NixOS configuration file and link it from the resulting system
  # (/run/current-system/configuration.nix). This is useful in case you
  # accidentally delete configuration.nix.
  system.copySystemConfiguration = true;
 
  # This value determines the NixOS release from which the default
  # settings for stateful data, like file locations and database versions
  # on your system were taken. It‘s perfectly fine and recommended to leave
  # this value at the release version of the first install of this system.
  # Before changing this value read the documentation for this option
  # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
  system.stateVersion = "22.11"; # Did you read the comment?
 
  boot.initrd.availableKernelModules = [
    "ahci"
    "xhci_pci"
    "virtio_pci"
    "virtio_blk"
    "ehci_pci"
    "nvme"
    "uas"
    "sd_mod"
    "sr_mod"
    "sdhci_pci"
  ];
  boot.initrd.kernelModules = [ ];
  boot.kernelModules = [ "kvm-intel" "kvm-amd" ];
  boot.extraModulePackages = [ ];
 
  fileSystems = {
    "/" = {
      device = "rpool/nixos/root";
      fsType = "zfs";
      options = [ "X-mount.mkdir" ];
    };
 
    "/home" = {
      device = "rpool/nixos/home";
      fsType = "zfs";
      options = [ "X-mount.mkdir" ];
    };
 
    "/var/lib" = {
      device = "rpool/nixos/var/lib";
      fsType = "zfs";
      options = [ "X-mount.mkdir" ];
    };
 
    "/var/log" = {
      device = "rpool/nixos/var/log";
      fsType = "zfs";
      options = [ "X-mount.mkdir" ];
    };
 
    "/boot" = {
      device = "bpool/nixos/root";
      fsType = "zfs";
      options = [ "X-mount.mkdir" ];
    };
  } // (builtins.listToAttrs (map (diskName: {
    name = zfsRoot.mirroredEfi + diskName + zfsRoot.partitionScheme.efiBoot;
    value = {
      device = zfsRoot.devNodes + diskName + zfsRoot.partitionScheme.efiBoot;
      fsType = "vfat";
      options = [
        "x-systemd.idle-timeout=1min"
        "x-systemd.automount"
        "noauto"
        "nofail"
      ];
    };
  }) zfsRoot.bootDevices));
 
  swapDevices = (map (diskName: {
    device = zfsRoot.devNodes + diskName + zfsRoot.partitionScheme.swap;
    discardPolicy = "both";
    randomEncryption = {
      enable = true;
      allowDiscards = true;
    };
  }) zfsRoot.bootDevices);
 
  # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
  # (the default) this is the recommended approach. When using systemd-networkd it's
  # still possible to use this option, but it's recommended to use it in conjunction
  # with explicit per-interface declarations with `networking.interfaces.<interface>.useDHCP`.
  networking.useDHCP = lib.mkDefault true;
  # networking.networkmanager.enable = true;
  # networking.interfaces.enp1s0.useDHCP = lib.mkDefault true;
 
  nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
  hardware.cpu.intel.updateMicrocode =
    lib.mkDefault config.hardware.enableRedistributableFirmware;
  hardware.cpu.amd.updateMicrocode =
    lib.mkDefault config.hardware.enableRedistributableFirmware;
 
  boot.supportedFilesystems = [ "zfs" ];
  networking.hostId = "abcd1234";
  boot.kernelPackages = config.boot.zfs.package.latestCompatibleLinuxPackages;
  boot.loader.efi.efiSysMountPoint = with builtins;
    (zfsRoot.mirroredEfi + (head zfsRoot.bootDevices) + zfsRoot.partitionScheme.efiBoot);
  boot.zfs.devNodes = zfsRoot.devNodes;
  boot.loader.efi.canTouchEfiVariables = false;
  boot.loader.generationsDir.copyKernels = true;
  boot.loader.grub.efiInstallAsRemovable = true;
  boot.loader.grub.enable = true;
  boot.loader.grub.version = 2;
  boot.loader.grub.copyKernels = true;
  boot.loader.grub.efiSupport = true;
  boot.loader.grub.zfsSupport = true;
  boot.loader.grub.extraInstallCommands = with builtins;
    (toString (map (diskName:
      "cp -r " + config.boot.loader.efi.efiSysMountPoint + "/EFI" + " "
      + zfsRoot.mirroredEfi + diskName + zfsRoot.partitionScheme.efiBoot + "\n")
      (tail zfsRoot.bootDevices)));
  boot.loader.grub.devices =
    (map (diskName: zfsRoot.devNodes + diskName) zfsRoot.bootDevices);
}
 
</pre>
 
: <code>cat /mnt/etc/nixos/machine.nix</code>
<pre>
{
  bootDevices = [  "ata-Samsung_SSD_850_EVO_1TB_S3LENB0JB00287Z" "ata-Samsung_SSD_860_EVO_M.2_1TB_S415NB0M120414E" ];
}
</pre>
 
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