--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/usr/src/test/zfs-tests/tests/functional/cli_root/zpool_upgrade/zpool_upgrade_009_neg.ksh	Wed Dec 05 22:04:50 2012 -0500
@@ -0,0 +1,70 @@
+#!/usr/bin/ksh -p
+#
+# CDDL HEADER START
+#
+# The contents of this file are subject to the terms of the
+# Common Development and Distribution License (the "License").
+# You may not use this file except in compliance with the License.
+#
+# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
+# or http://www.opensolaris.org/os/licensing.
+# See the License for the specific language governing permissions
+# and limitations under the License.
+#
+# When distributing Covered Code, include this CDDL HEADER in each
+# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
+# If applicable, add the following below this CDDL HEADER, with the
+# fields enclosed by brackets "[]" replaced with your own identifying
+# information: Portions Copyright [yyyy] [name of copyright owner]
+#
+# CDDL HEADER END
+#
+
+#
+# Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
+# Use is subject to license terms.
+#
+
+#
+# Copyright (c) 2012 by Delphix. All rights reserved.
+#
+
+. $STF_SUITE/include/libtest.shlib
+. $STF_SUITE/tests/functional/cli_root/zpool_upgrade/zpool_upgrade.kshlib
+
+#
+# DESCRIPTION:
+#
+# Zpool upgrade -V shouldn't be able to upgrade a pool to an unknown version
+#
+# STRATEGY:
+# 1. Take an existing pool
+# 2. Attempt to upgrade it to an unknown version
+# 3. Verify that the upgrade failed, and the pool version was still the original
+#
+
+verify_runnable "global"
+
+function cleanup
+{
+	destroy_upgraded_pool $config
+}
+
+log_assert \
+"Zpool upgrade -V shouldn't be able to upgrade a pool to an unknown version"
+
+# Create a version 2 pool
+typeset -i config=2
+create_old_pool $config
+pool=$(eval $ECHO \$ZPOOL_VERSION_${config}_NAME)
+
+# Attempt to upgrade it
+log_mustnot $ZPOOL upgrade -V 999 $pool
+log_mustnot $ZPOOL upgrade -V 999
+
+# Verify we're still on the old version
+check_poolversion $pool $config
+destroy_upgraded_pool $config
+
+log_pass \
+ "Zpool upgrade -V shouldn't be able to upgrade a pool to an unknown version"