NixoOS setup on VirtualBox

virtualbox-nixos-setup.bash

sudo -i

loadkeys br-abnt2 # Setting the keyboard layout to Brazilian ABNT2
setfont ter-v32n # Increase font

curl google.com # Check internet connection

parted /dev/sda -- mklabel gpt # use GPT partition table

parted /dev/sda -- mkpart primary 512MiB 100% # 16GiB partition for LVM and 512MiB boot partition

parted /dev/sda -- mkpart ESP fat32 1MiB 512MiB # Use ESP (EFI system partition) for boot partition
parted /dev/sda -- set 2 esp on # Enable ESP for the 2nd file system (the boot one)

# Create LUKS device
cryptsetup --hash sha512 --use-random --verify-passphrase -v luksFormat /dev/sda1
cryptsetup open /dev/sda1 lvm

pvcreate /dev/mapper/lvm # Create physicial volume

vgcreate vg /dev/mapper/lvm # Create volume group

lvcreate -l 100%FREE vg -n root # Create root logical volume

mkfs.fat -F 32 -n boot /dev/sda2 # Init boot file system (sda2) with label "boot"


mkfs.btrfs /dev/vg/root
mount -t btrfs /dev/vg/root /mnt

btrfs subvolume create /mnt/root
btrfs subvolume create /mnt/home

umount /mnt

mount -o subvol=root,compress=lzo,noatime,autodefrag,discard,nodev,rw,space_cache /dev/vg/root /mnt # mount root

mkdir /mnt/home # create /home

mount -o subvol=home,compress=lzo,noatime,autodefrag,discard,nodev,rw,space_cache,nosuid /dev/vg/root /mnt/home # mount home

mkdir /mnt/boot # Create boot folder
mount /dev/disk/by-label/boot /mnt/boot # Mount boot file system

truncate -s 0 /mnt/swapfile
chattr +C /mnt/swapfile
btrfs property set /mnt/swapfile compression none

dd if=/dev/zero of=/mnt/swapfile bs=1M count=6144 status=progress # set swapfile size to 6GiB
sync
chmod 600 /mnt/swapfile

mkswap /mnt/swapfile
swapon /mnt/swapfile

nixos-generate-config --root /mnt # Generate config
nano /mnt/etc/nixos/configuration.nix # Edit config

# Modifications on config for VirtualBox
#   boot.loader.systemd-boot.enable = true;
#   boot.loader.efi.canTouchEfiVariables = true;
#
#   boot.initrd.luks.devices."lvm" =
#   {  device = "/dev/sda1";
#      preLVM = true;
#      allowDiscards = true;
#   };
#
#   swapDevices = [ { device = "/swapfile"; size = 6144; } ];
#   boot.resumeDevice = "/swapfile";

nixos-install

shutdown now # or reboot

# Remove NixOS Installation ISO and boot the virtual machine again