dotfiles/install_os.sh

122 lines
3.4 KiB
Bash
Executable file
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

#!/usr/bin/env nix-shell
#! nix-shell -i bash
#! nix-shell -p nix
set -euo pipefail
SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
# Parse arguments
function help {
echo "Usage: $0 [-h|-e] [flake-uri#]name"
echo "Install a NixOS configuration from another installation on the same machine."
echo
echo "Arguments:"
echo " flake-uri: Path to flake containing the system configuration. Default: the one where the script is located."
echo " name: Hostname of the configuration to install. The flake must contain an output named 'nixosConfigurations.*name*'"
echo
echo "Options:"
echo " -h: Display this help message."
echo " -e: Erase the disk. For cases where the partition scheme doesn't match the existing one."
}
disko_mode=mount
while getopts "he" OPTION
do
case "$OPTION" in
h)
help
exit 0
;;
e)
disko_mode=disko
;;
?)
help
exit 2
;;
esac
done
shift "$((OPTIND -1))"
if [ "$#" -ne 1 ]
then
help
exit 2
fi
if [[ "$1" == *"#"* ]]
then
flake_uri="$(echo "$1" | cut -d'#' -f1)"
flake_uri=$( cd -- "$flake_uri" &> /dev/null && pwd )
name="$(echo "$1" | cut -d'#' -f2)"
else
flake_uri="$SCRIPT_DIR"
name="$1"
fi
if [ ! -f "$flake_uri/flake.nix" ]
then
echo "Flake not found."
fi
flake="${flake_uri}#${name}"
mountpoint="/mnt/nixos"
luks_pass_path="luks/$(basename "${name}")"
set -x
sudo mkdir -p "$mountpoint"
# Load encryption password
luks_pass_file="/tmp/dotfiles_${name}_password";
trap 'rm "$luks_pass_file"' ERR
touch "$luks_pass_file"
chmod "u=rw" "$luks_pass_file"
pass "$luks_pass_path" | head -n1 | tr -d '\n' > "$luks_pass_file"
# Format or mount disk
sudo nix --extra-experimental-features "nix-command flakes" run "${SCRIPT_DIR}#disko" -- --mode "$disko_mode" --flake "$flake"
# --root-mountpoint is ignored with flakes, so this is set in os/common.nix
# Unload encryption password
trap - ERR
rm "$luks_pass_file"
# Generate hardware-config.nix
sudo nix --extra-experimental-features "nix-command flakes" run "${SCRIPT_DIR}#nixos-generate-config" -- --no-filesystems --root "$mountpoint"
# --no-filesystems because they are imported via disko
sudo rm "$mountpoint/etc/nixos/configuration.nix"
# Plug system configuration into this git repo
sudo mkdir -p "${mountpoint}/etc/nixos"
echo "{
description = \"$name system config\";
inputs.entrypoint.url = \"git+file:$flake_uri\";
outputs = { self, entrypoint, ... }:
{
nixosConfigurations.$name = entrypoint.nixosConfigurations.$name.extendModules {
modules = [ ./hardware-configuration.nix ];
};
};
}" | sudo tee "${mountpoint}/etc/nixos/flake.nix" > /dev/null
# Everything there should be covered by (and conflicts with) the repo anyways.
# Install NixOS! Or create a new generation.
sudo nix --extra-experimental-features "nix-command flakes" run "${SCRIPT_DIR}#nixos-install" -- --no-root-password --root "$mountpoint" --flake "${mountpoint}/etc/nixos#${name}"
set +x
# Signal the installation is done!
echo 
echo "Manual post-installation instructions:"
echo "- Boot into the system"
echo "- Transfer necessary private keys (or use ssh -A for testing)"
echo "- Run git-sync"
echo "- Run install-passwords"
echo "- Run install-wifi"
echo "- Run rb"
echo "- Change root and user password"
# TODO Use update-local-flakes?