hyl.st
1# Setup
2# Presumes pre-formatted harddrives
3BOOT=/dev/sda1
4DISK=/dev/sda2
5
6dd if=/dev/urandom of=./keyfile0.bin bs=1024 count=4
7dd if=/dev/urandom of=./keyfile1.bin bs=1024 count=4
8
9echo "Creating LUKS partitions..."
10# Enter the passphrase which is used to unlock disk. You will enter this in grub on every boot
11cryptsetup luksFormat --type luks1 -c aes-xts-plain64 -s 256 -h sha512 $DISK
12# Add a second key which will be used by nixos. You will need to enter the pasphrase from previous step
13cryptsetup luksAddKey $DISK keyfile0.bin
14cryptsetup luksOpen $DISK crypted-nixos -d keyfile0.bin
15
16# Create the LVM
17echo "Creating LVM partitions..."
18pvcreate /dev/mapper/crypted-nixos
19vgcreate vg /dev/mapper/crypted-nixos
20lvcreate -L 4G -n swap vg
21lvcreate -l '100%FREE' -n root vg
22
23# Format the disks
24echo "Formatting disks..."
25mkfs.fat -F 32 $BOOT
26mkswap -L swap /dev/vg/swap
27mkfs.ext4 -L root /dev/vg/root
28# mkfs.ext4 -L data /dev/mapper/crypted-data
29
30echo "Mounting drives..."
31mount /dev/vg/root /mnt
32mkdir -p /mnt/boot/efi
33mount $BOOT /mnt/boot/efi
34swapon /dev/vg/swap
35
36# Copy the keys
37
38mkdir -p /mnt/etc/secrets/initrd/
39cp keyfile0.bin keyfile1.bin /mnt/etc/secrets/initrd
40chmod 000 /mnt/etc/secrets/initrd/keyfile*.bin
41
42# Generate and edit configuration
43
44echo "Generating NixOS config..."
45nixos-generate-config --root /mnt
46
47# TODO: neds to get the uuid of each of the disks
48# UUID=$(blkid)
49echo "Extending NixOS config..."
50cat >> /mnt/etc/nixos/configuration.nix <<'endmsg'
51 boot.loader.efi.canTouchEfiVariables = true;
52 boot.loader.efi.efiSysMountPoint = "/boot/efi";
53 boot.loader.grub = {
54 enable = true;
55 device = "nodev";
56 version = 2;
57 efiSupport = true;
58 enableCryptodisk = true;
59 };
60
61 boot.initrd = {
62 luks.devices."root" = {
63 # UPDATE ME
64 device = "/dev/disk/by-uuid/a8b302cf-5296-4a2e-a7ba-707e6fa75123"; # UUID for /dev/nvme01np2
65 preLVM = true;
66 keyFile = "/keyfile0.bin";
67 allowDiscards = true;
68 };
69 secrets = {
70 # Create /mnt/etc/secrets/initrd directory and copy keys to it
71 "keyfile0.bin" = "/etc/secrets/initrd/keyfile0.bin";
72 "keyfile1.bin" = "/etc/secrets/initrd/keyfile1.bin";
73 };
74 };
75
76 # Data mount
77 # This is all wrong for box for now
78 # fileSystems."/data" = {
79 # device = "/dev/disk/by-uuid/79630267-5766-4c7d-85a5-1d5f1dcd58ad"; # UUID for /dev/mapper/crypted-data
80 # encrypted = {
81 # enable = true;
82 # label = "crypted-data";
83 # blkDev = "/dev/disk/by-uuid/3476cb09-b3c4-4301-9ec9-84f60f32828a"; # UUID for /dev/sda1
84 # keyFile = "/keyfile1.bin";
85 # };
86 # };
87
88 time.timeZone = "Australia/Brisbane";
89
90 networking.useDHCP = false;
91
92 nix = {
93 package = pkgs.nixUnstable;
94 extraOptions = ''
95 experimental-features = nix-command flakes
96 '';
97 };
98
99 users.users.anish = {
100 isNormalUser = true;
101 hashedPassword = "MVHHpy9gbe3ow";
102 extraGroups = [ "wheel" ]; # Enable ‘sudo’ for the user.
103 openssh.authorizedKeys.keys = [ "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABgQDM0Zvei46x/yZl/IeBCq6+IYQQ0avulzVyBysF9cPigZMCybWRV7IEU+E3k9t6JrbdbdGfJkcZIWmsWDdKS8W8mBnZpVoT0ffLynu8JQ/TKdGm4Qv6bgUeKNrGsNv0ZPs2CDaGSLj0oJfRF7Ko10tcLP0vW+yujrh+y6TH/vVzJioaV4TGvtCUpn+wEQah9ROwPQLUUofsSWdnRsDJ/gp37zXWs4l5wyjSKtP3O9RZUP7kBekbSqEgSXiTk0oUQSVqIWl9NDiP6onk/gSOjXsR/JPqsSN/XI/c/yj6gyY0f51Ru2D7iBxuMJIJcWV+rU6coIj+ULcQWLzt/7TI8jq5AOOzI/ll4zbL24Eo84Rz+TP9tvMMhDZ0VaMN22AJ8qQEjc5P09tWKsX7Jg39XelyV1jHXncE4yvIE9F4RSCHzWCeKeXakizQNuzSaxTxIExRFYHjNW5bR6+3MTGwVrEIXU+qML+0yFTR86MT+tdY5AreAJQLwbog79O1NupeXJE= anish@curve" ];
104 };
105 security.sudo.wheelNeedsPassword = false; # needed for deploy-rs
106
107 services.openssh.enable = true;
108
109 # This value determines the NixOS release from which the default
110 # settings for stateful data, like file locations and database versions
111 # on your system were taken. It‘s perfectly fine and recommended to leave
112 # this value at the release version of the first install of this system.
113 # Before changing this value read the documentation for this option
114 # (e.g. man configuration.nix or on https://nixos.org/nixos/options.html).
115 system.stateVersion = "22.11"; # Did you read the comment?
116}
117
118endmsg
119
120
121# sudo nixos-install