Update setup notes

notes/nixos-setup.txt

@@ -1,3 +1,5 @@
# NOTE: First check that the disk driver is set to virtio!
fdisk /dev/sda
	o
	n p <enter> <enter> +1G
@@ -28,7 +30,9 @@ mount /dev/sda1 /mnt/boot
# NixOS installation
nixos-generate-config --root /mnt
wget -O /mnt/etc/nixos/configuration.nix https://git.cryto.net/joepie91/morph-rc/raw/master/data/dummy-configuration.nix
curl https://git.cryto.net/joepie91/morph-rc/raw/master/data/dummy-configuration.nix > /mnt/etc/nixos/configuration.nix
# NOTE: Potentially update configuration.nix at this point if the primary disk is not /dev/sda!
nixos-install
# NOTE: Don't forget to set a better root password over SSH after restarting