nixOS/modules/boot.nix

37 lines
1.2 KiB
Nix

# Bootloader and Secure Boot configuration
{ config, pkgs, lib, ... }:
{
# Use latest kernel instead of LTS
# boot.kernelPackages = pkgs.linuxPackages_latest;
# Note: security.nix forces hardened kernel, so we use that.
# Lanzaboote Secure Boot
boot.loader.systemd-boot.enable = lib.mkForce false;
boot.lanzaboote = {
enable = true;
pkiBundle = "/var/lib/sbctl";
};
boot.loader.efi.canTouchEfiVariables = true;
# Arch Linux systemd-boot entry
# Copies kernel/initramfs from Arch btrfs partition to ESP and creates loader entry
system.activationScripts.archBoot = let
archEntry = pkgs.writeText "arch.conf" ''
title Arch Linux
linux /arch/vmlinuz-linux
initrd /arch/initramfs-linux.img
options root=UUID=15ae8384-3dfc-4915-9201-66ecfc5f230d rootflags=subvol=@ rw
'';
in ''
mkdir -p /boot/arch
if mountpoint -q /mnt/arch; then
cp /mnt/arch/boot/vmlinuz-linux /boot/arch/vmlinuz-linux
cp /mnt/arch/boot/initramfs-linux.img /boot/arch/initramfs-linux.img
${pkgs.sbctl}/bin/sbctl sign /boot/arch/vmlinuz-linux
fi
mkdir -p /boot/loader/entries
cp ${archEntry} /boot/loader/entries/arch.conf
'';
}