btw i use nix
ryan.freumh.org
1#!/usr/bin/env bash
2
3set -euo pipefail
4
5usage() {
6 echo "Usage: $0 <disk> <hostname> [-c <config-url>] [-y]"
7 echo " -h <hostname> : Required hostname for the new system"
8 echo " -c <config-url> : Optional URL to a NixOS configuration (default: https://github.com/RyanGibb/nixos.git)"
9 echo " -y : Run non-interactively (skip all prompts)"
10 exit 1
11}
12
13if [ "$EUID" -ne 0 ]
14 then echo "Please run as root"
15 exit
16fi
17
18URL="https://github.com/RyanGibb/nixos.git"
19AUTO_YES=false
20
21if [ $# -lt 2 ]; then
22 usage
23fi
24
25DISK=$1
26HOST=$2
27shift 2
28
29while getopts ":c:y" opt; do
30 case $opt in
31 c) URL="$OPTARG" ;;
32 y) AUTO_YES=true ;;
33 *) usage ;;
34 esac
35done
36
37PART_SUFFIX=""
38if [[ "$DISK" == *nvme* ]]; then
39 PART_SUFFIX="p"
40fi
41
42echo "Partitioning $DISK..."
43parted "$DISK" -- mklabel gpt
44parted "$DISK" -- mkpart ESP fat32 1MB 512MB
45parted "$DISK" -- mkpart primary 512MiB 100%
46parted "$DISK" -- set 1 esp on
47
48echo "Making file systems..."
49mkfs.fat -F 32 -n boot "${DISK}${PART_SUFFIX}1"
50mkfs.ext4 -L nixos "${DISK}${PART_SUFFIX}2"
51
52echo "Mounting partitions..."
53mount "${DISK}${PART_SUFFIX}2" /mnt
54mkdir -p /mnt/boot
55mount "${DISK}${PART_SUFFIX}1" /mnt/boot
56
57if [ "$AUTO_YES" = false ]; then
58 echo
59 echo "Disk partitioning and mounting complete."
60 echo "The following partitions have been created and mounted on $DISK:"
61 echo " - ${DISK}${PART_SUFFIX}1 (ESP, FAT32, /boot) mounted at /mnt/boot"
62 echo " - ${DISK}${PART_SUFFIX}2 (Primary, ext4, /) mounted at /mnt"
63 echo
64 echo "Do you want to use the NixOS configuration included in this ISO or from a remote git repository?"
65 echo "1) Use local"
66 echo "2) Use remote: $CONFIG_URL"
67 read -r -p "Select an option [1/2] (default is 2): " config_choice
68 config_choice=${config_choice:-2}
69else
70 config_choice=2
71fi
72
73mkdir -p /mnt/etc/nixos/
74if [[ "$config_choice" == "1" ]]; then
75 echo "Copying local configuration to /mnt/etc/nixos ..."
76 cp -R /home/nixos/nixos /mnt/etc/nixos/
77else
78 echo "Cloning $URL to /mnt/etc/nixos ..."
79 git clone "$URL" /mnt/etc/nixos
80fi
81
82echo "Generating configuration at /mnt/etc/nixos/hosts/$HOST ..."
83mkdir -p /mnt/etc/nixos/hosts/"$HOST"
84nixos-generate-config --show-hardware-config >> /mnt/etc/nixos/hosts/"$HOST"/hardware-configuration.nix
85(cd /mnt/etc/nixos/hosts/"$HOST"; nix flake init -t /mnt/etc/nixos#host)
86
87if [ "$AUTO_YES" = false ]; then
88 echo
89 read -r -p "Do you want to continue with the NixOS installation? [y/N] " response
90 if [[ ! "$response" =~ ^[Yy]$ ]]; then
91 echo "Installation aborted by user."
92 exit 0
93 fi
94fi
95
96echo "Installing NixOS..."
97nixos-install --root /mnt/ --flake /mnt/etc/nixos#"$HOST"
98
99if [ "$AUTO_YES" = false ]; then
100 echo
101 read -r -p "Installation is complete. Do you want to reboot the system now? [y/N] " response
102 if [[ ! "$response" =~ ^[Yy]$ ]]; then
103 echo "Reboot canceled by user. You may continue using the system."
104 exit 0
105 fi
106fi
107
108reboot