Index: defaults/sparc64/Makefile.config
===================================================================
--- defaults/sparc64/Makefile.config	(revision 0175246a19e8ee96e2ea4f2c13e89c437bf42b2e)
+++ defaults/sparc64/Makefile.config	(revision 646b9960f45edec2b83f4adb3bc5a501c2b28e9b)
@@ -55,2 +55,8 @@
 # External ramdisk
 CONFIG_RD_EXTERNAL = y
+
+# Load disk drivers on startup
+CONFIG_START_BD = n
+
+# Mount /data on startup
+CONFIG_MOUNT_DATA = n