gnt-backup: Don't show confusing message w/o target node

[ganeti-local] / scripts / gnt-backup

diff --git a/scripts/gnt-backup b/scripts/gnt-backup
index 62ed706..355359a 100755 (executable)
--- a/scripts/gnt-backup
+++ b/scripts/gnt-backup
@@ -31,6 +31,7 @@ import sys
 from ganeti.cli import *
 from ganeti import opcodes
 from ganeti import constants
+from ganeti import errors
 
 
 _VALUE_TRUE = "true"
@@ -73,6 +74,9 @@ def ExportInstance(opts, args):
   """
   ignore_remove_failures = opts.ignore_remove_failures
 
+  if not opts.node:
+    raise errors.OpPrereqError("Target node must be specified")
+
   op = opcodes.OpExportInstance(instance_name=args[0],
                                 target_node=opts.node,
                                 shutdown=opts.shutdown,