Disko Config

Generate LUKS keyfile to encrypt the root partition, it's used by disko.

# partition the usb stick
DEV=/dev/sdX
parted $DEV -- mklabel gpt
parted $DEV -- mkpart primary 2M 512MB
parted $DEV -- mkpart primary 512MB 1024MB
mkfs.fat -F 32 -n NIXOS_DSC ${DEV}1
mkfs.fat -F 32 -n NIXOS_K3S ${DEV}2

# Generate a keyfile from the true random number generator
KEYFILE=./kubevirt-luks-keyfile
dd bs=512 count=64 iflag=fullblock if=/dev/random of=$KEYFILE

# generate token for k3s
K3S_TOKEN_FILE=./kubevirt-k3s-token
K3S_TOKEN=$(grep -ao '[A-Za-z0-9]' < /dev/random | head -64 | tr -d '\n' ; echo "")
echo $K3S_TOKEN > $K3S_TOKEN_FILE

# copy the keyfile and token to the usb stick
KEYFILE=./kubevirt-luks-keyfile
DEVICE=/dev/disk/by-label/NIXOS_DSC
# seek=128 skip N obs-sized output blocks to avoid overwriting the filesystem header
dd bs=512 count=64 iflag=fullblock seek=128 if=$KEYFILE of=$DEVICE

K3S_TOKEN_FILE=./kubevirt-k3s-token
USB_PATH=/run/media/ryan/NIXOS_K3S
cp $K3S_TOKEN_FILE $USB_PATH

2. Partition the SSD & install NixOS via disko

# enter an shell with git/vim/ssh-agent/gnumake available
nix-shell -p git vim gnumake
# clone this repository
git clone https://github.com/ryan4yin/nix-config.git

cd nix-config
sudo nix run --experimental-features "nix-command flakes" 'github:nix-community/disko#disko-install' -- \
  --write-efi-boot-entries --disk main /dev/nvme0n1 --flake .#kubevirt-shoryu