--- a/src/cmd/ztest/ztest.c	2010-03-21 21:39:22.122252179 -0700
+++ b/src/cmd/ztest/ztest.c	2010-03-21 21:45:31.700254020 -0700
@@ -3270,7 +3270,7 @@
 	/* LINTED */	
 
  	(void) sprintf(zdb,
-	    "../zdb/zdb -bc%s%s -U /tmp/zpool.cache  %s",
+	    "/usr/sbin/zdb -bc%s%s -U -O %s %s",
   	    zopt_verbose >= 3 ? "s" : "",
   	    zopt_verbose >= 4 ? "v" : "",
   	    pool);