Bug 11990 - Add encryption properties to db.properties during install

better help message

setup/bindir/cloud-setup-databases.in

@@ -69,9 +69,10 @@ class DBDeployer(object):
         def cleanOrRecoverDbDotProperties():
             dbpPath = os.path.join(self.dbConfPath, 'db.properties')
             copyPath = os.path.join(self.dbConfPath, 'db.properties.origin')
-            if not self.success:
-                shutil.copy2(copyPath, dbpPath)
-            os.remove(copyPath)
+            if os.path.isfile(copyPath):
+                if not self.success:
+                    shutil.copy2(copyPath, dbpPath)
+                os.remove(copyPath)
         
         cleanOrRecoverDbDotProperties()
                 
@@ -179,13 +180,20 @@ Sql parameters:
         
     def errorAndExit(self, msg):
         self.postRun()
-        if self.parser != None:
-            self.parser.error(msg)
-        else:
-            sys.stderr.write(msg)
-            sys.stderr.flush()
-            sys.exit(1)
-    
+        err = '''\n\nWe apologize for below error:
+***************************************************************      
+%s
+*************************************************************** 
+Please run:
+
+    cloud-setup-database -h
+
+for full help
+''' % msg
+        sys.stderr.write(err)
+        sys.stderr.flush()
+        sys.exit(1)
+
     def setupDBSchema(self):
         if not self.rootuser:
             self.info("No mysql root user specified, will not create Cloud DB schema\n", None)