diff --git a/module/upgrade/lang/de.php b/module/upgrade/lang/de.php
index e093ec0ccf..bac892c7ae 100644
--- a/module/upgrade/lang/de.php
+++ b/module/upgrade/lang/de.php
@@ -9,6 +9,7 @@
  * @version     $Id: en.php 5119 2013-07-12 08:06:42Z wyd621@gmail.com $
  * @link        http://www.zentao.net
  */
+global $config;
 $lang->upgrade->common          = 'Upgrade';
 $lang->upgrade->start           = 'Start';
 $lang->upgrade->result          = 'Ergebnis';
@@ -32,6 +33,22 @@ $lang->upgrade->warnningContent = <<<EOT
 </pre>
 EOT;
 
+if($config->db->driver == 'dm')
+{
+    $lang->upgrade->warnningContent = <<<EOT
+<p>The upgrade requires high database privileges, please use the root user.<br>
+   Please backup your database before updating ZenTao!</p>
+<pre>
+1. It can be backed up by graphical client tools.
+2. Use DIsql tool to back up data.
+   $> BACKUP DATABASE BACKUPSET  <span class='text-danger'>'filename'</span>;
+   After the statement is executed, a backup set directory named "filename" is generated in the default backup path.
+   The default backup path is the path configured with BAK_PATH in dm.ini. If BAK_PATH is not configured, bak in SYSTEM_PATH is used by default.
+   This is the simplest database backup statement,To set additional backup options, you need to understand the syntax of the online backup database.
+</pre>
+EOT;
+}
+
 $lang->upgrade->createFileWinCMD   = 'Öffnen Sie ein Konsolenfenster und rufen Sie <strong style="color:#ed980f">echo > %s</strong> auf';
 $lang->upgrade->createFileLinuxCMD = 'Ausführen in der Shell: <strong style="color:#ed980f">touch %s</strong>';
 $lang->upgrade->setStatusFile      = '<h4>Please complete the following actions</h4>
diff --git a/module/upgrade/lang/en.php b/module/upgrade/lang/en.php
index f23397dceb..f307daa2c9 100644
--- a/module/upgrade/lang/en.php
+++ b/module/upgrade/lang/en.php
@@ -9,6 +9,7 @@
  * @version     $Id: en.php 5119 2013-07-12 08:06:42Z wyd621@gmail.com $
  * @link        http://www.zentao.net
  */
+global $config;
 $lang->upgrade->common          = 'Update';
 $lang->upgrade->start           = 'Start';
 $lang->upgrade->result          = 'Result';
@@ -32,6 +33,22 @@ $lang->upgrade->warnningContent = <<<EOT
 </pre>
 EOT;
 
+if($config->db->driver == 'dm')
+{
+    $lang->upgrade->warnningContent = <<<EOT
+<p>The upgrade requires high database privileges, please use the root user.<br>
+   Please backup your database before updating ZenTao!</p>
+<pre>
+1. It can be backed up by graphical client tools.
+2. Use DIsql tool to back up data.
+   $> BACKUP DATABASE BACKUPSET  <span class='text-danger'>'filename'</span>;
+   After the statement is executed, a backup set directory named "filename" is generated in the default backup path.
+   The default backup path is the path configured with BAK_PATH in dm.ini. If BAK_PATH is not configured, bak in SYSTEM_PATH is used by default.
+   This is the simplest database backup statement,To set additional backup options, you need to understand the syntax of the online backup database.
+</pre>
+EOT;
+}
+
 $lang->upgrade->createFileWinCMD   = 'Open command line and execute <strong style="color:#ed980f">echo > %s</strong>';
 $lang->upgrade->createFileLinuxCMD = 'Execute command line: <strong style="color:#ed980f">touch %s</strong>';
 $lang->upgrade->setStatusFile      = '<h4>Please complete the following actions</h4>
diff --git a/module/upgrade/lang/fr.php b/module/upgrade/lang/fr.php
index e19f61edf2..bb6b24a86c 100644
--- a/module/upgrade/lang/fr.php
+++ b/module/upgrade/lang/fr.php
@@ -9,6 +9,7 @@
  * @version     $Id: en.php 5119 2013-07-12 08:06:42Z wyd621@gmail.com $
  * @link        http://www.zentao.net
  */
+global $config;
 $lang->upgrade->common          = 'Mise à jour';
 $lang->upgrade->start           = 'Start';
 $lang->upgrade->result          = 'Résultat';
@@ -32,6 +33,22 @@ $lang->upgrade->warnningContent = <<<EOT
 </pre>
 EOT;
 
+if($config->db->driver == 'dm')
+{
+    $lang->upgrade->warnningContent = <<<EOT
+<p>The upgrade requires high database privileges, please use the root user.<br>
+   Please backup your database before updating ZenTao!</p>
+<pre>
+1. It can be backed up by graphical client tools.
+2. Use DIsql tool to back up data.
+   $> BACKUP DATABASE BACKUPSET  <span class='text-danger'>'filename'</span>;
+   After the statement is executed, a backup set directory named "filename" is generated in the default backup path.
+   The default backup path is the path configured with BAK_PATH in dm.ini. If BAK_PATH is not configured, bak in SYSTEM_PATH is used by default.
+   This is the simplest database backup statement,To set additional backup options, you need to understand the syntax of the online backup database.
+</pre>
+EOT;
+}
+
 $lang->upgrade->createFileWinCMD   = 'Ouvrez la fenêtre Ligne de commandes de windows et exécutez <strong style="color:#ed980f">echo > %s</strong>';
 $lang->upgrade->createFileLinuxCMD = 'Executez la ligne de commande suivante: <strong style="color:#ed980f">touch %s</strong>';
 $lang->upgrade->setStatusFile      = '<h4>Please complete the following actions</h4>
diff --git a/module/upgrade/lang/zh-cn.php b/module/upgrade/lang/zh-cn.php
index 5a38727fae..69bf751a81 100644
--- a/module/upgrade/lang/zh-cn.php
+++ b/module/upgrade/lang/zh-cn.php
@@ -9,6 +9,7 @@
  * @version     $Id: zh-cn.php 5119 2013-07-12 08:06:42Z wyd621@gmail.com $
  * @link        http://www.zentao.net
  */
+global $config;
 $lang->upgrade->common          = '升级';
 $lang->upgrade->start           = '开始';
 $lang->upgrade->result          = '升级结果';
@@ -32,6 +33,22 @@ $lang->upgrade->warnningContent = <<<EOT
 </pre>
 EOT;
 
+if($config->db->driver == 'dm')
+{
+    $lang->upgrade->warnningContent = <<<EOT
+<p>升级对数据库权限要求较高，请使用管理员用户。<br>
+   升级有危险，请先备份数据库，以防万一。</p>
+<pre>
+1. 可以通过图形化客户端工具进行备份。
+2. 使用DIsql工具进行备份。
+   $> BACKUP DATABASE BACKUPSET  <span class='text-danger'>'filename'</span>;
+   语句执行完后会在默认的备份路径下生成名为“filename”的备份集目录。
+   默认的备份路径为 dm.ini 中 BAK_PATH 配置的路径，若未配置 BAK_PATH，则默认使用 SYSTEM_PATH 下的 bak 目录。
+   这是最简单的数据库备份语句，如果要设置其他的备份选项需了解联机备份数据库的语法。
+</pre>
+EOT;
+}
+
 $lang->upgrade->createFileWinCMD   = '打开命令行，执行<strong style="color:#ed980f">echo > %s</strong>';
 $lang->upgrade->createFileLinuxCMD = '在命令行执行: <strong style="color:#ed980f">touch %s</strong>';
 $lang->upgrade->setStatusFile      = '<h4>升级之前请先完成下面的操作：</h4>