116 lines
3.1 KiB
Bash
Executable file
116 lines
3.1 KiB
Bash
Executable file
#!/usr/bin/env nix-shell
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#! nix-shell -i bash
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#! nix-shell -p bash nixos-install-tools
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set -euo pipefail
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SCRIPT_DIR=$( cd -- "$( dirname -- "${BASH_SOURCE[0]}" )" &> /dev/null && pwd )
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# Parse arguments
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function help {
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echo "Usage: $0 [-h|-e] profile"
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echo "Install NixOS on a device."
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echo
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echo "Arguments:"
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echo " profile: OS/disk profile to use"
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echo
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echo "Options:"
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echo " -h: Display this help message."
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echo " -e: Erase the disk. For cases where the partition scheme doesn't match the existing one."
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}
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disko_mode=mount
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while getopts "he" OPTION
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do
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case "$OPTION" in
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h)
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help
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exit 0
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;;
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e)
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disko_mode=disko
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;;
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?)
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help
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exit 2
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;;
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esac
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done
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shift "$(($OPTIND -1))"
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if [ "$#" -ne 1 ]
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then
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help
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exit 2
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fi
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profile="$1"
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profile_dir="${SCRIPT_DIR}/${profile}"
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if [ ! -d "$profile_dir" ]
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then
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echo "Profile not found."
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fi
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disko_config="${profile_dir}/dk.nix"
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if [ ! -f "$disko_config" ]
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then
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echo "Disk configuration not found."
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fi
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nixos_config="${profile_dir}/os.nix"
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if [ ! -f "$nixos_config" ]
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then
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echo "NixOS configuration not found."
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fi
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mountpoint="/mnt/nixos"
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nix_flakes_cmd="nix --extra-experimental-features nix-command --extra-experimental-features flakes"
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luks_pass_path="luks/$(basename ${profile})"
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set -x
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sudo mkdir -p "$mountpoint"
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# Add channels to root user, as nixos-install uses those.
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# Not great, but fixable with flakes I guess
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sudo ./add_channels.sh
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# Load encryption password
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luks_pass_file="$(mktemp --suffix="luks_password")"
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pass $luks_pass_path | head -n1 | tr -d '\n' > $luks_pass_file
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# Format or mount disk
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sudo $nix_flakes_cmd run github:nix-community/disko -- --root-mountpoint "$mountpoint" --mode "$disko_mode" --argstr passwordFile "$luks_pass_file" "$disko_config"
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# Unload encryption password
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rm "$luks_pass_file"
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# Generate hardware-config.nix
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sudo nixos-generate-config --no-filesystems --root "$mountpoint"
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# --no-filesystems because they are imported via disko
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# Plug system configuration into this git repo
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sudo mkdir -p "${mountpoint}/etc/nixos"
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echo "{ ... }: { imports = [ ./hardware-configuration.nix ${nixos_config} ]; }" | sudo tee "${mountpoint}/etc/nixos/configuration.nix" > /dev/null
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# Everything there should be covered by (and conflicts with) the repo anyways.
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# Install NixOS! Or create a new generation.
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sudo nixos-install --no-root-password --root "$mountpoint"
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# Install dotfiles. Actually not needed by nixos-install since it doesn't rewrite global paths to the mountpoint.
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# Without it no nixos-rebuild from the system itself once installed though.
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# Should probably be replaced with something like git-sync
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# sudo mkdir -p $mountpoint/home/geoffrey/.config/
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# sudo cp -a ../dotfiles $mountpoint/home/geoffrey/.config/
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# sudo chown geoffrey:geoffrey $mountpoint/home/geoffrey -R
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set +x
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# Signal the installation is done!
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echo
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echo "Manual post-installation instructions:"
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echo "- Boot into the system"
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echo "- Transfer necessary private keys (or use ssh -A for testing)"
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echo "- Run git-sync-init"
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echo "- Check that the system can build itself"
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