diff --git a/coreos.json b/coreos.json
index 5972193..8022a88 100644
--- a/coreos.json
+++ b/coreos.json
@@ -23,13 +23,18 @@
       {
         "device": "/dev/sda",
         "partitions": [
+          {
+            "label": "root",
+            "number": 4,
+            "resize": true,
+            "sizeMiB": 0
+          },
           {
             "label": "swap",
-            "number": 1,
             "sizeMiB": 8192
           }
         ],
-        "wipeTable": true
+        "wipeTable": false
       }
     ],
     "files": [
@@ -85,7 +90,12 @@
     "filesystems": [
       {
         "device": "/dev/disk/by-partlabel/swap",
-        "format": "swap",
+        "format": "swap"
+      },
+      {
+        "device": "/dev/disk/by-partlabel/root",
+        "format": "xfs",
+        "label": "root",
         "wipeFilesystem": true
       }
     ]