--- /n/sources/plan9/sys/lib/dist/pc/inst/bootsetup	Sun Oct 10 13:23:20 2010
+++ /sys/lib/dist/pc/inst/bootsetup	Thu Jan  1 00:00:00 2015
@@ -59,7 +59,7 @@
 		bind /n/newfs/386/9loadnousb /n/newfs/386/9load	# cater to old bioses
 	if(~ $need9fatformat yes){
 		log Initializing Plan 9 FAT partition.
-		disk/format -r 2 -d -b /386/pbs \
+		disk/format -r 2 -d -b /386/pbslba \
 			/dev/$disk/9fat /n/newfs/386/9load
 		# silently install pbslba if the partition is way into the disk.
 		# it''s our only hope.  only need this for >8.5GB into the disk.