Nixos 20.03 base install (legacy boot, encrypted root, lvm)

setup.sh

#!/bin/bash

# setup wifi
wpa_supplicant -B -i interface -c <(wpa_passphrase 'SSID' 'key')

# partition disks
# sda1 /boot
# sda2 LVM PV
#   - vg hdd
#      - lv root
#      - lv home
#      - lv swap
parted /dev/sda -- mklabel msdos
parted /dev/sda -- mkpart primary 1MiB 512MiB
parted /dev/sda -- mkpart primary 512MiB -1s
parted /dev/sda -- set 1 boot on
parted /dev/sda -- set 2 lvm on

cryptsetup luksFormat /dev/sda2
cryptsetup luksOpen /dev/sda2 pv-enc
pvcreate /dev/mapper/pv-enc
vgcreate hdd /dev/mapper/pv-enc
lvcreate -L 30G -n root hdd
lvcreate -L 50G -n home hdd
lvcreate -L 4G -n swap hdd

# format partitions
mkfs.ext4 -L boot /dev/sda1
mkfs.ext4 -L root /dev/hdd/root
mkfs.ext4 -L home /dev/hdd/home
mkswap -L swap /dev/hdd/swap

# install nixos
mount /dev/hdd/root /mnt
mkdir -p /mnt/boot /mnt/home
mount /dev/disk/by-label/boot /mnt/boot
mount /dev/hdd/home /mnt/home
swapon /dev/hdd/swap
nixos-generate-config --root /mnt
vim /mnt/etc/nixos/configuration.nix
nixos-install