move to grub2 as-removable

flake.nix

@@ -244,8 +244,6 @@
             hardwareModules = [
               lix-module.nixosModules.default
               ./nixos/profiles/hw-supermicro.nix
-              disko.nixosModules.disko
-              (import ./nixos/profiles/disko-nixos.nix { disks = [ "/dev/disk/by-id/ata-Seagate_IronWolfPro_ZA240NX10001-2ZH100_7TF002RA" ]; })
             ];
             profileModules = [
               ./nixos/profiles/role-server.nix

nixos/hosts/gandalf/default.nix

@@ -1,7 +1,7 @@
 # Do not modify this file!  It was generated by ‘nixos-generate-config’
 # and may be overwritten by future invocations.  Please make changes
 # to /etc/nixos/configuration.nix instead.
-{ config, lib, modulesPath, ... }:
+{ config, lib, modulesPath, inputs, ... }:
 let 
   sanoidConfig = import ./config/sanoid.nix { };
 in
@@ -9,6 +9,8 @@ in
   imports =
     [
       (modulesPath + "/installer/scan/not-detected.nix")
+      inputs.disko.nixosModules.disko
+      (import ./nixos/profiles/disko-nixos.nix { disks = [ "/dev/sda" ]; })
     ];
 
   boot = {
@@ -44,26 +46,6 @@ in
     };
   };
 
-  fileSystems."/" = {
-    device = "zroot/root";
-    fsType = "zfs";
-  };
-
-  fileSystems."/nix" = {
-    device = "zroot/nix";
-    fsType = "zfs";
-  };
-
-  fileSystems."/var" = {
-    device = "zroot/var";
-    fsType = "zfs";
-  };
-
-  fileSystems."/home" = {
-    device = "zroot/home";
-    fsType = "zfs";
-  };
-
   swapDevices = [ ];
 
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;

nixos/profiles/hw-legion-15arh05h.nix

@@ -21,9 +21,6 @@
           { devices = [ "nodev" ]; path = "/boot"; }
         ];
       };
-      # efi = {
-      #   canTouchEfiVariables = true;
-      # };
     };
   };
 

nixos/profiles/hw-supermicro.nix

@@ -5,9 +5,12 @@
     supportedFilesystems = [ "nfs" ];
 
     loader = {
-      systemd-boot.enable = true;
-      efi = {
-        canTouchEfiVariables = true;
+      grub = {
+        enable = true;
+        efiInstallAsRemovable = true;
+        mirroredBoots = [
+          { devices = [ "nodev" ]; path = "/boot"; }
+        ];
       };
     };
   };