111 lines
2.5 KiB
Bash
Executable file
111 lines
2.5 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -euo pipefail
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# Non-interactive Btrfs installer using the flake in this repo.
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# Defaults: DISK=/dev/vda TARGET_HOST=nanuqsaurus
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DISK="${DISK:-/dev/vda}"
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TARGET_HOST="${TARGET_HOST:-nanuqsaurus}"
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SCRIPT_DIR="$(cd -- "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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REPO_ROOT="$(cd -- "$SCRIPT_DIR/.." && pwd)"
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MNT=/mnt
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EFI_SIZE=550M
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have() { command -v "$1" >/dev/null 2>&1; }
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die() {
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echo "ERROR: $*" >&2
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exit 1
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}
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confirm_disk() {
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echo "About to DESTROY ALL DATA on ${DISK}"
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lsblk "$DISK" || die "Disk not found: $DISK"
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echo "Continuing in 5 seconds… (Ctrl+C to abort)"
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sleep 5
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}
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clear
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confirm_disk
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echo "[1/7] Partitioning ${DISK}"
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sfdisk "$DISK" <<EOF
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label: gpt
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,${EFI_SIZE},U
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,,L
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EOF
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echo "[2/7] Formatting filesystems"
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mkfs.fat -F32 "${DISK}1"
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mkfs.btrfs -f "${DISK}2"
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echo "[3/7] Creating Btrfs subvolumes"
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mkdir -p "$MNT"
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mount "${DISK}2" "$MNT"
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for subvol in root home nix; do
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btrfs subvolume create "$MNT/$subvol"
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done
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umount "$MNT"
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echo "[4/7] Mounting subvolumes"
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mount -o compress=zstd,subvol=root "${DISK}2" "$MNT"
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mkdir -p "$MNT"/{home,nix,boot}
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mount -o compress=zstd,subvol=home "${DISK}2" "$MNT/home"
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mount -o compress=zstd,subvol=nix "${DISK}2" "$MNT/nix"
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mount "${DISK}1" "$MNT/boot"
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echo "[5/7] Copying flake to /etc/nixos"
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mkdir -p "$MNT/etc/nixos"
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EXCLUDES=(--exclude=.git --exclude=result --exclude=node_modules)
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if have rsync; then
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rsync -a "${EXCLUDES[@]}" "$REPO_ROOT/" "$MNT/etc/nixos/"
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else
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(cd "$REPO_ROOT" && tar -cf - "${EXCLUDES[@]/#/--exclude=}" .) \
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| (cd "$MNT/etc/nixos" && tar -xf -)
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fi
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echo "[6/7] Generating hardware config"
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HOSTS_DIR="$MNT/etc/nixos/hosts"
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mkdir -p "$HOSTS_DIR"
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HW_FILE="$HOSTS_DIR/local-${TARGET_HOST}-hardware.nix"
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HOST_FILE="$HOSTS_DIR/local-${TARGET_HOST}.nix"
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nixos-generate-config --root "$MNT" --show-hardware-config > "$HW_FILE"
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if [[ ! -e "$HOST_FILE" ]]; then
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cat > "$HOST_FILE" <<EOF
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{ inputs, ... }:
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{
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imports = [
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inputs.lix-module.nixosModules.lixFromNixpkgs
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../modules/system/base.nix
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../modules/system/packages.nix
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../modules/system/home-manager-skel.nix
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../modules/desktop/gnome-minimal.nix
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../modules/users/admin.nix
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./local-${TARGET_HOST}-hardware.nix
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];
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networking.hostName = "${TARGET_HOST}";
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}
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EOF
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fi
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echo "[7/7] Installing ${TARGET_HOST} via flake"
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LOG=/tmp/nixos-install.log
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nixos-install \
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--root "$MNT" \
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--flake "$MNT/etc/nixos#local-${TARGET_HOST}" \
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--no-root-passwd |& tee "$LOG"
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echo "Install log saved to $LOG"
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echo "Install complete. You can reboot now."
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