add disko and update config for fred

hosts/fred/default.nix

@@ -4,5 +4,6 @@
   imports =
     [
       ./hardware-configuration.nix
+      ./disko.nix
     ];
 }

hosts/fred/disko.nix

@@ -0,0 +1,40 @@
+{
+  disko.devices = {
+    disk = {
+      vdb = {
+        device = "/dev/sda";
+        type = "disk";
+        content = {
+          type = "table";
+          format = "gpt";
+          partitions = [
+            {
+              name = "ESP";
+              start = "1M";
+              end = "500M";
+              bootable = true;
+              content = {
+                type = "filesystem";
+                format = "vfat";
+                mountpoint = "/boot";
+              };
+            }
+            {
+              name = "root";
+              start = "500M";
+              end = "100%";
+              part-type = "primary";
+              bootable = true;
+              content = {
+                type = "filesystem";
+                format = "ext4";
+                mountpoint = "/";
+              };
+            }
+          ];
+        };
+      };
+    };
+  };
+}
+

hosts/fred/hardware-configuration.nix

@@ -14,18 +14,18 @@
   boot.extraModulePackages = [ ];
 
   fileSystems."/" =
-    { device = "/dev/disk/by-uuid/90189466-8309-4b46-befe-cf476b8a7dd7";
+    { device = "/dev/sda2";
       fsType = "ext4";
     };
 
   fileSystems."/boot" =
-    { device = "/dev/disk/by-uuid/A327-E803";
+    { device = "/dev/sda1";
       fsType = "vfat";
     };
 
-  swapDevices =
-    [ { device = "/dev/disk/by-uuid/13b6e2c4-b8f1-48c9-b992-bf2d172d9a25"; }
-    ];
+  #swapDevices =
+    #[ { device = "/dev/disk/by-uuid/13b6e2c4-b8f1-48c9-b992-bf2d172d9a25"; }
+    #];
 
   # Enables DHCP on each ethernet and wireless interface. In case of scripted networking
   # (the default) this is the recommended approach. When using systemd-networkd it's
@@ -36,6 +36,6 @@
   # networking.interfaces.wlp1s0.useDHCP = lib.mkDefault true;
 
   nixpkgs.hostPlatform = lib.mkDefault "x86_64-linux";
-  powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
+  #powerManagement.cpuFreqGovernor = lib.mkDefault "powersave";
   hardware.cpu.intel.updateMicrocode = lib.mkDefault config.hardware.enableRedistributableFirmware;
 }