diff -up nfs-utils-1.2.0/utils/mount/stropts.c.orig nfs-utils-1.2.0/utils/mount/stropts.c
--- nfs-utils-1.2.0/utils/mount/stropts.c.orig	2009-06-02 10:43:05.000000000 -0400
+++ nfs-utils-1.2.0/utils/mount/stropts.c	2009-09-09 08:02:01.000000000 -0400
@@ -573,11 +573,7 @@ static int nfs_try_nfs23mount(struct nfs
 	if (nfs_sys_mount(mi, "nfs", *extra_opts))
 		return 1;
 
-	/*
-	 * The kernel returns EOPNOTSUPP if the RPC bind failed,
-	 * and EPROTONOSUPPORT if the version isn't supported.
-	 */
-	if (errno != EOPNOTSUPP && errno != EPROTONOSUPPORT)
+	if (nfs_is_permanent_error(errno))
 		return 0;
 
 	return nfs_retry_nfs23mount(mi);