2024-07-02 14:02:12 +00:00
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#!/usr/bin/env bash
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# Script to install a brand new NixOS installation.
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# Formats the drive provided, then runs nixos-install.
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set -e
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# Configuration parameters
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ask_root_password=true # Prompt for a root user password
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flakeDir="." # Where the flake.nix file is stored
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boot_drive="/dev/disk/by-uuid/whatever" # The drive to install the bootloader to
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root_drive="/dev/disk/by-id/whatever" # The partition to install NixOS to
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if [ "$(id -u)" != "0" ]; then
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echo "This script must be run as root" 1>&2
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exit 1
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fi
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cryptsetup --allow-discards --label=nixos-crypt --type=luks2 luksFormat $root_drive
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cryptsetup luksOpen $root_drive nixos-crypt
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mount /dev/mapper/nixos-crypt /mnt
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mkfs.btrfs -L nixos /mnt
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btrfs subvolume create /mnt/@
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btrfs subvolume create /mnt/@home
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btrfs subvolume create /mnt/@log
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btrfs subvolume create /mnt/@nix
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btrfs subvolume create /mnt/@swap
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umount /mnt
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mount -o subvol=@ $root_drive /mnt
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mkdir -p /mnt/{boot,home,var/log,nix,swap}
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mount $boot_drive /mnt/boot
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mount -o subvol=@home $root_drive /mnt/home
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2024-07-02 22:15:37 +00:00
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mount -o subvol=@log $root_drive /mnt/var/log
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2024-07-02 14:02:12 +00:00
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mount -o subvol=@nix $root_drive /mnt/nix
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mount -o subvol=@swap $root_drive /mnt/swap
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# Create swapfile
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btrfs filesystem mkswapfile --size $(free -h --si | grep Mem: | awk '{print $2}') --uuid clear /mnt/swap/swapfile
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nixos-install --verbose --root /mnt --flake $flakeDir $( (( ask_root_password == false )) && echo "--no-root-password" )
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exit 0
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