NixOS on Dell XPS 13

configuration.nix

# 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, pkgs, ... }:

{
  imports =
  [ # Include the results of the hardware scan.
      ./hardware-configuration.nix
  ];

  # Supposedly better for SSD
  fileSystems."/".options = [ "noatime" "nodiratime" "discard" ];

  # Use the systemd-boot EFI boot loader.
  boot.loader.systemd-boot.enable = true;
  boot.loader.efi.canTouchEfiVariables = true;

  boot.initrd.luks.devices = [
  {
  name = "root";
  device = "/dev/nvme0n1p2";
  preLVM = true;
  }
  ];

  powerManagement.enable = true;

  networking.networkmanager.enable = true;
  networking.hostName = "hostname"; # Define your hostname.
  #networking.wireless.enable = true;  # Enables wireless support via wpa_supplicant.

  # Select internationalisation properties.
  i18n = {
  consoleFont = "latarcyrheb-sun32";
  consoleKeyMap = "uk";
  defaultLocale = "en_GB.UTF-8";
  };

  # Set your time zone.
  time.timeZone = "Europe/London";

  # List packages installed in system profile. To search by name, run:
  # $ nix-env -qaP | grep wget
  environment.systemPackages = with pkgs; [
     wget git curl openssh stow 
  ];

  # List services that you want to enable:

  # Enable the OpenSSH daemon.
  services.openssh.enable = true;

  # Open ports in the firewall.
  # networking.firewall.allowedTCPPorts = [ ... ];
  # networking.firewall.allowedUDPPorts = [ ... ];
  # Or disable the firewall altogether.
  # networking.firewall.enable = false;

  # Enable CUPS to print documents.
  # services.printing.enable = true;

  # Enable the X11 windowing system.
  #services.xserver.enable = true;
  #services.xserver.layout = "gb";
  # services.xserver.xkbOptions = "eurosign:e";

  # Enable the KDE Desktop Environment.
  #services.xserver.displayManager.sddm.enable = true;
  #services.xserver.desktopManager.plasma5.enable = true;


  # Define a user account. Don't forget to set a password with ‘passwd’.
  # users.extraUsers.guest = {
  #   isNormalUser = true;
  #   uid = 1000;
  # };

  users.extraUsers.reb = {
  isNormalUser = true;
  uid = 1000;
  extraGroups = ["wheel" "networkmanager"];
  };

  # The NixOS release to be compatible with for stateful data such as databases.
  system.stateVersion = "17.03";

  services.xserver = {
   	enable = true;
   	layout = "gb";
   	desktopManager = {
   		gnome3.enable = true;
   		default = "gnome3";
   		};

	displayManager.gdm.enable = true;

	};
}

gistfile1.txt

# Notes on installing NixOS on Dell XPS-13 Late 2016 9360
# Build a NixOS bootable USB stick Via RUFUS and NixOS image

# Boot from the usb.
# F12 to enter boot menu

# Set UK keymap
loadkeys uk

# Set large font
setfont latarcyrheb-sun32

# Create two partitions:
# 1 512MB EFI partition # Hex code ef00 called "boot"
# 2 100% Linux partiton (to be encrypted) # Hex code 8300 called "linux"
cgdisk /dev/nvme0n1


# Setup the encryption of the system
cryptsetup luksFormat /dev/nvme0n1p2
cryptsetup luksOpen /dev/nvme0n1p2 enc-pv

# Create LVM partitions
pvcreate /dev/mapper/enc-pv
vgcreate vg0 /dev/mapper/enc-pv
lvcreate -L 16G -n swap vg0
lvcreate -l '100%FREE' -n root vg0

# Format
mkfs.fat /dev/nvme0n1p1
mkfs.ext4 -L root /dev/vg0/root
mkswap -L swap /dev/vg0/swap

mount /dev/vg0/root /mnt
mkdir /mnt/boot
mount /dev/nvme0n1p1 /mnt/boot
swapon /dev/vg0/swap

nixos-generate-config

# change /etc/nixos/configuration.nix
# DO NOT networking.wireless.enable = true, we'll
# use NetworkManager with gnome3 instead


# Networking
## Wifi is a bit of bugger, but restarting network-manager and using nmcli seems to help
systemctl stop wpa_supplicant.service
systemctl stop network-manager.service
systemctl start network-manager.service
nmcli dev
nmcli dev wifi list
nmcli dev wifi con "myssid" password "myssidpassword"

# If you screw up and need to reboot

cryptsetup luksOpen /dev/nvme0n1p2 enc-pv
lvchange -a y /dev/vg0/swap
lvchange -a y /dev/vg0/root
mount /dev/vg/root /mnt
mount /dev/nvme0n1p1 /mnt/boot
swapon /dev/vg0/swap

# If you have a DA200 adapter plug it in an redo

nixos-generate-config

# Also see

https://gist.github.com/martijnvermaat/76f2e24d0239470dd71050358b4d5134

# Notes
# Bit of a pity that NixOS isnt using wayland yet, HiDPI is a bit of a bugger, but
# gsettings set org.gnome.desktop.interface scaling-factor 2
# from the command line helps
#
# Had to manually install /etc/ssl/certs/AddTrust_External_CA_Root_DER_X.509.cer
# to get eduroam to work, but this is probably in a package somewhere?
#

I believe nixos-generate-config should be nixos-generate-config --root /mnt