test

modules/nixos/disko/aarch64-linux/default.nix

@@ -1,5 +1,4 @@
 {
-  config,
   lib,
   system,
   ...
@@ -46,8 +45,6 @@ in
             ESP = {
               priority = 2;
               name = "ESP";
-              # start = "1G";
-              # end = "2G";
               size = "1G";
               type = "EF00";
               content = {
@@ -57,61 +54,68 @@ in
                 mountOptions = [ "umask=0077" ];
               };
             };
-
             root = {
-              name = "btrfs-root";
+              name = "bcachefs-root";
               size = "100%";
               content = {
-                type = "btrfs";
+                type = "bcachefs";
-                extraArgs = [ "-f" ]; # Override existing partition
+                filesystem = "main_fs";  # Reference to filesystem below
-                # Subvolumes must set a mountpoint in order to be mounted,
+                extraFormatArgs = [ "--discard" ];
-                # unless their parent is mounted
-                subvolumes = {
-                  "home" = {
-                    mountOptions = [ "compress=zstd" ];
-                    mountpoint = "/home";
-                  };
-                  "root" = {
-                    mountOptions = [
-                      "compress=zstd"
-                      "noatime"
-                    ];
-                    mountpoint = "/root";
-                  };
-                  "nix" = {
-                    mountOptions = [
-                      "compress=zstd"
-                      "noatime"
-                    ];
-                    mountpoint = "/nix";
-                  };
-                  "etc" = {
-                    mountOptions = [
-                      "compress=zstd"
-                      "noatime"
-                    ];
-                    mountpoint = "/etc";
-                  };
-                  "tmp" = {
-                    mountOptions = [
-                      "compress=zstd"
-                      "noatime"
-                    ];
-                    mountpoint = "/tmp";
-                  };
-                  "log" = {
-                    mountOptions = [
-                      "compress=zstd"
-                      "noatime"
-                    ];
-                    mountpoint = "/var/log";
-                  };
-                };
               };
             };
           };
         };
       };
+      bcachefs_filesystems = {
+        main_fs = {
+          type = "bcachefs_filesystem";
+          extraFormatArgs = [
+            "--compression=zstd"
+            "--background_compression=zstd"
+          ];
+          subvolumes = {
+            # Root subvolume
+            "subvolumes/root" = {
+              mountpoint = "/root";
+              mountOptions = [
+                "noatime"
+              ];
+            };
+            # Home subvolume
+            "subvolumes/home" = {
+              mountpoint = "/home";
+            };
+            # Nix store
+            "subvolumes/nix" = {
+              mountpoint = "/nix";
+              mountOptions = [
+                "noatime"
+              ];
+            };
+            # Etc
+            "subvolumes/etc" = {
+              mountpoint = "/etc";
+              mountOptions = [
+                "noatime"
+              ];
+            };
+            # Tmp
+            "subvolumes/tmp" = {
+              mountpoint = "/tmp";
+              mountOptions = [
+                "noatime"
+              ];
+            };
+            # Log
+            "subvolumes/log" = {
+              mountpoint = "/var/log";
+              mountOptions = [
+                "noatime"
+              ];
+            };
+          };
+        };
+      };
     };
   };
-}
+}