Index: branches/meklort/i386/boot2/boot.c
===================================================================
--- branches/meklort/i386/boot2/boot.c	(revision 151)
+++ branches/meklort/i386/boot2/boot.c	(revision 152)
@@ -72,7 +72,7 @@
 bool gScanSingleDrive;
 
 int     bvCount = 0;
-//int		menucount = 0;
+//int	menucount = 0;
 int     gDeviceCount = 0; 
 
 BVRef   bvr;
@@ -86,7 +86,6 @@
 
 static bool gUnloadPXEOnExit = false;
 
-extern int usb_loop();
 /*
  * How long to wait (in seconds) to load the
  * kernel after displaying the "boot:" prompt.
@@ -162,6 +161,8 @@
         sleep(kBootErrorTimeout);
     }
 
+	md0Ramdisk();
+	
     setupFakeEfi();
 
     verbose("Starting Darwin %s\n",( archCpuType == CPU_TYPE_I386 ) ? "x86" : "x86_64");
Index: branches/meklort/i386/boot2/ramdisk.c
===================================================================
--- branches/meklort/i386/boot2/ramdisk.c	(revision 151)
+++ branches/meklort/i386/boot2/ramdisk.c	(revision 152)
@@ -16,6 +16,67 @@
 bool gRAMDiskBTAliased = false;
 char gRAMDiskFile[512];
 
+
+// Notify OS X that a ramdisk has been setup. XNU with attach this to /dev/md0
+void md0Ramdisk()
+{
+	RAMDiskParam ramdiskPtr;
+	char* filename = 0;
+	int fh = 0;
+	
+	// Look for a ramdisk at Postboot.img (TODO: make configurable)
+	filename = "rd(0,0)/Extra/Postboot.img";
+	if((fh = open(filename, 0)) == -1)
+	{
+		filename = "/Extra/Postboot.img";	// Check /Extra if not in rd(0,0)
+		fh = open(filename, 0);
+
+	}
+	
+	
+	if (fh != -1)
+	{
+		verbose("Enabling ramdisk %s\n", filename);
+
+		ramdiskPtr.size  = file_size(fh);
+		ramdiskPtr.base = AllocateKernelMemory(ramdiskPtr.size);
+		
+		if(ramdiskPtr.size && ramdiskPtr.base)
+		{
+			// Read new ramdisk image contents in kernel memory.
+			if (read(fh, (char*) ramdiskPtr.base, ramdiskPtr.size) == ramdiskPtr.size)
+			{
+				AllocateMemoryRange("RAMDisk", ramdiskPtr.base, ramdiskPtr.size, kBootDriverTypeInvalid);
+				Node* node = DT__FindNode("/chosen/memory-map", false);
+				if(node != NULL)
+				{
+					DT__AddProperty(node, "RAMDisk", sizeof(RAMDiskParam),  (void*)&ramdiskPtr);		
+					
+				}
+				else
+				{
+					verbose("Unable to notify Mac OS X of the ramdisk %s.\n", filename);
+				}
+				
+			}
+			else {
+				verbose("Unable to read ramdisk %s\n", filename);
+			}
+			
+		} else {
+			verbose("Ramdisk %s is empty.\n", filename);
+		}
+		
+		
+		close(fh);
+		
+	}
+	else {
+		verbose("Unable to open %s\n", filename);
+	}
+}
+
+
 void umountRAMDisk()
 {
   if (gRAMDiskMI != NULL)