M profiles/onyx/base.nix → profiles/onyx/base.nix

@@ -5,8 +5,13 @@ ...
 }:
 {
   boot.kernelPackages = unstable-pkgs.linuxPackages_latest;
+  boot.supportedFilesystems = [ "zfs" ];
+  boot.zfs.forceImportRoot = false;
+  boot.zfs.devNodes = "/dev/disk/by-id";
+  services.zfs.trim.enable = true;
 
   networking.hostName = "onyx";
+  networking.hostId = "8db6cf97";
   time.timeZone = "Europe/London";
 
   hardware.graphics.enable = true;

M profiles/onyx/disks.nix → profiles/onyx/disks.nix

@@ -1,4 +1,5 @@
-{ lib, ... }: {
+{ lib, ... }:
+{
   disko.devices.disk.primary = {
     device = lib.mkDefault "/dev/disk/by-id/nvme-WD_BLACK_SN850X_2000GB_240264805134";
     type = "disk";
@@ -20,23 +21,36 @@ };
         };
         root = {
           size = "100%";
-          type = "8300";
+          type = "BF00";
           content = {
-            type = "btrfs";
-            subvolumes = {
-              "/root" = {
-                mountpoint = "/";
-              };
-              "/nix" = {
-                mountOptions = [
-                  "compress=zstd"
-                  "noatime"
-                  "noacl"
-                ];
-                mountpoint = "/nix";
-              };
-            };
+            type = "zfs";
+            pool = "zroot";
           };
+        };
+      };
+    };
+  };
+
+  disko.devices.zpool.zroot = {
+    type = "zpool";
+    rootFsOptions = {
+      acltype = "posixacl";
+      xattr = "sa";
+      dnodesize = "auto";
+    };
+    datasets = {
+      root = {
+        type = "zfs_fs";
+        mountpoint = "/";
+        options.mountpoint = "legacy";
+      };
+      nix = {
+        type = "zfs_fs";
+        mountpoint = "/nix";
+        options = {
+          mountpoint = "legacy";
+          compression = "zstd";
+          atime = "off";
         };
       };
     };