boot.nix

{ config, pkgs, lib, ... }:
{
    # Use the GRUB 2 boot loader.
    # loader.grub.enable = true;
    # loader.grub.version = 2;
    # boot.loader.grub.efiSupport = true;
    # boot.loader.grub.efiInstallAsRemovable = true;
    # boot.loader.efi.efiSysMountPoint = "/boot/efi";
    
    loader = {
      systemd-boot.enable = true;
      efi.canTouchEfiVariables = true;
    };
    initrd.supportedFilesystems = [ "zfs" ];
    supportedFilesystems = [ "zfs" ];
    zfs = { 
		requestEncryptionCredentials = true;
	   	devNodes = "/dev/";
 	};

    # Define on which hard drive you want to install Grub.
    loader.grub.device = "/dev/sda"; # or "nodev" for efi only
    # [ "tun" "virtio" "cpufreq_stats"  "acpi" "thinkpad-acpi" "tp_acpi" ];
    kernelParams = # pkgs.linuxPackages_latest ++ 
      [
        "amgpu.noretry=0" 
	"amdgpu.lockup_timeout=1000"
	"amdgpu.gpu_recovery=1"
	"amdgpu.audio=0"
        "amdgpu.runpm=0"
        "iommu=soft:w"
      ];
    initrd.availableKernelModules = [ "nvme" "ehci_pci" "xhci_pci" "usb_storage" "sd_mod" "thinkpad_acpi" "rtsx_pci_sdmmc"];
    initrd.kernelModules = [ "acpi_call" "thinkpad-acpi" ]; 
    kernelModules = [ "kvm-amd" "overlay" ];
    extraModulePackages = with config.boot.kernelPackages; [ acpi_call ];		
    
}