diff --git a/coreos.json b/coreos.json
index 2b99fb2..d0dab62 100644
--- a/coreos.json
+++ b/coreos.json
@@ -22,23 +22,15 @@
   "storage": {
     "disks": [
       {
-        "device": "/dev/sda1",
-        "partitions": [
-          {
-            "label": "data",
-            "sizeMiB": 0,
-            "startMiB": 0
-          }
-        ],
-        "wipeTable": true
-      },
-      {
-        "device": "/dev/sda2",
+        "device": "/dev/sda",
         "partitions": [
           {
             "label": "swap",
-            "sizeMiB": 8000,
-            "startMiB": 0
+            "sizeMiB": 8000
+          },
+          {
+            "label": "data",
+            "sizeMiB": 0
           }
         ],
         "wipeTable": true