tree-wide: switch to grub2 as default bootloader, instead of systemd-boot

Signed-off-by: Christoph Heiss <christoph@c8h4.io>

common/boot.nix

@@ -3,11 +3,12 @@
 {
   boot.tmp.useTmpfs = true;
   boot.loader.timeout = lib.mkForce 1;
-  boot.loader.systemd-boot = {
+
+  boot.loader.grub = {
     enable = lib.mkDefault (!config.boot.isContainer);
-    configurationLimit = 2;
-    consoleMode = "max";
-    editor = false;
+    copyKernels = true;
+    fsIdentifier = "uuid";
+    configurationLimit = 8;
   };
 
   boot.kernelPackages = lib.mkDefault pkgs.linuxPackages_latest;

machines/back.nix

@@ -10,18 +10,6 @@
 
   system.stateVersion = "23.11";
 
-  boot.loader.systemd-boot.enable = false;
-  boot.loader.grub = {
-    enable = true;
-    copyKernels = true;
-    efiInstallAsRemovable = true;
-    efiSupport = true;
-    fsIdentifier = "uuid";
-    enableCryptodisk = true;
-    device = "nodev";
-    configurationLimit = 8;
-  };
-
   boot.initrd = {
     availableKernelModules = [ "hpsa" "sd_mod" "aesni_intel" "cryptd" "tg3" ];
     kernelModules = [ "md_mod" "raid0" "raid1" ];

machines/fort.nix

@@ -33,18 +33,13 @@ in {
     ../system/virtual-machine.nix
   ];
 
-  boot.initrd.availableKernelModules = [ "ahci" "xhci_pci" "sd_mod" "sr_mod" ];
+  system.stateVersion = "23.05";
 
-  boot.loader.systemd-boot.enable = false;
-  boot.loader.grub = {
-    enable = true;
-    device = "/dev/sda";
-  };
+  boot.initrd.availableKernelModules = [ "ahci" "xhci_pci" "sd_mod" "sr_mod" ];
+  boot.loader.grub.device = "/dev/sda";
 
   boot.kernel.sysctl."net.ipv4.ip_forward" = 1;
 
-  system.stateVersion = "23.05";
-
   fileSystems."/" = {
     device = "/dev/disk/by-uuid/0ec38da7-36b2-437c-b4dd-45d5ed620979";
     fsType = "btrfs";

system/baremetal-server.nix

@@ -1,6 +1,13 @@
 {
   imports = [ ../common ../services/openssh.nix ../system/headless.nix ];
 
+  boot.loader.grub = {
+    efiInstallAsRemovable = true;
+    efiSupport = true;
+    enableCryptodisk = true;
+    device = "nodev";
+  };
+
   boot.kernelParams = [ "panic=10" "mitigations=off" ];
   boot.kernelModules = [ "kvm-intel" ];
 

system/desktop.nix

@@ -5,6 +5,11 @@
 
   boot.kernelParams = [ "audit=0" ];
 
+  boot.loader.grub = {
+    efiSupport = true;
+    device = "nodev";
+  };
+
   documentation = {
     man.generateCaches = true;
     man.man-db.enable = true;