Add a (currently failing) test for RHBZ 816672.

test/shell/activate-missing-segment.sh

@@ -0,0 +1,30 @@
+#!/bin/sh
+# Copyright (C) 2010 Red Hat, Inc. All rights reserved.
+#
+# This copyrighted material is made available to anyone wishing to use,
+# modify, copy, or redistribute it subject to the terms and conditions
+# of the GNU General Public License v.2.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software Foundation,
+# Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+
+# Test activation behaviour with devices missing.
+# - snapshots and their origins are only activated together; if one fails, both
+#   fail
+# - partial mirrors are not activated (but maybe they should? maybe we should
+#   instead lvconvert --repair them?)
+# - linear LVs with bits missing are not activated
+
+. lib/test
+
+aux prepare_vg 2
+aux expect_failure
+
+lvcreate -l100%FREE -n span $vg
+vgchange -a n $vg
+
+aux disable_dev "$dev1"
+not vgchange -a y $vg
+vgchange -a y --partial $vg
+check active $vg span