--- xen-unstable-orig/linux-2.6.10-xen-sparse/arch/xen/i386/kernel/setup.c	2005-01-25 22:29:18.000000000 -0600
+++ xen-unstable/linux-2.6.10-xen-sparse/arch/xen/i386/kernel/setup.c	2005-02-04 13:44:49.000000000 -0600
@@ -1360,7 +1360,10 @@
 		efi_enabled = 1;
 #endif
 
- 	ROOT_DEV = MKDEV(RAMDISK_MAJOR,0); /*old_decode_dev(ORIG_ROOT_DEV);*/
+	/* This must be initialized to UNNAMED_MAJOR for ipconfig to work
+	   properly.  Setting ROOT_DEV to default to /dev/ram0 breaks initrd.
+	*/
+	ROOT_DEV = MKDEV(UNNAMED_MAJOR,0);
  	drive_info = DRIVE_INFO;
  	screen_info = SCREEN_INFO;
 	edid_info = EDID_INFO;
--- xen-unstable-orig/linux-2.4.29-xen-sparse/arch/xen/kernel/setup.c	2005-01-25 22:29:10.000000000 -0600
+++ xen-unstable/linux-2.4.29-xen-sparse/arch/xen/kernel/setup.c	2005-02-04 13:44:58.000000000 -0600
@@ -240,7 +240,9 @@
     boot_cpu_data.pgd_quick = cpu0_pgd_quicklist;
     boot_cpu_data.pte_quick = cpu0_pte_quicklist;
 
-    ROOT_DEV = MKDEV(RAMDISK_MAJOR,0);
+    /* This must be initialized to UNNAMED_MAJOR for ipconfig to work
+       properly.  Setting ROOT_DEV to default to /dev/ram0 breaks initrd. */
+    ROOT_DEV = MKDEV(UNNAMED_MAJOR,0);
     memset(&drive_info, 0, sizeof(drive_info));
     memset(&screen_info, 0, sizeof(screen_info));