base/apu2e4.nix

   1 { pkgs, lib, config, ... }:
   2 {
   3 hardware.cpu.amd.updateMicrocode = true;
   4 nix = {
   5   # Too CPU hungry for the APU2, for too little Mio saved
   6   autoOptimiseStore = false;
   7   maxJobs = 4;
   8 };
   9 powerManagement.cpuFreqGovernor = lib.mkDefault "ondemand";
  10
  11 boot.kernel = {
  12   sysctl = {
  13     "vm.swappiness" = 10;
  14     "vm.vfs_cache_pressure" = 50;
  15   };
  16 };
  17
  18 boot.loader = {
  19   grub = {
  20     enable = true;
  21     version = 2;
  22     copyKernels = true;
  23     # efiSupport = true;
  24     devices = [
  25       # Completed in the importing configuration
  26     ];
  27     /*
  28     mirroredBoots = [
  29       { devices = [ "${disk_id}" ];
  30         path    = "/boot${bootnum}";
  31       }
  32     ];
  33     */
  34   };
  35   /*
  36   efi = {
  37     canTouchEfiVariables = true;
  38     efiSysMountPoint = "/boot/efi";
  39     efiInstallAsRemovable = false;
  40   };
  41   */
  42 };
  43
  44 boot.initrd = {
  45   availableKernelModules = [
  46     "ahci"
  47     "ehci_pci"
  48     "sd_mod"
  49     "uas"
  50     # Ethernet driver
  51     "igb"
  52     # Made the AES modules available at initrd,
  53     # to speedup the deciphering of the root.
  54     "aes_x86_64"
  55     "aesni_intel"
  56     "cryptd"
  57   ];
  58   kernelModules = [ ];
  59
  60 };
  61 boot.kernelModules = [ ];
  62 boot.extraModulePackages = [ ];
  63 boot.kernelParams = [
  64   "gfxpayload=text"
  65   #"console=tty0"
  66   "console=ttyS0,115200n8"
  67   # Use arc_summary to print stats
  68   "zfs.zfs_arc_max=${toString (500 * 1024 * 1024)}" # bytes
  69 ];
  70
  71 environment = {
  72   systemPackages = with pkgs; [
  73     pciutils
  74     flashrom
  75   ];
  76 };
  77 }