diff -ru rebuilt/u0.s build/u0.s
--- rebuilt/u0.s	2008-05-03 08:27:03.000000000 -1000
+++ build/u0.s	2008-05-04 08:28:00.000000000 -1000
@@ -122,7 +122,7 @@
 	mov    $sb0,(r1)+            / I/O queue entry drum
 	mov    $sb1,(r1)+ / I/O queue entry disk (mounted device)
 	mov    $swp,(r1)+ / I/O queue entry core image being swapped
-	mov    $[systm-inode]\/2,sb0+4 / sets up initial buffers per
+	mov    $-109.,sb0+4 / sets up initial buffers per
                                        / format given in
 	mov    $systm,sb0+6 / memory map
 	mov    $-512.,sb1+4