1. 连接交换机console线

   User interface con0 is available
   
   Please Press ENTER.

2. 重启交换机，进入bootrom；输入密码：huawei

   BIOS LOADING ...
   Copyright (c) 2008-2010 HUAWEI TECH CO., LTD.
   (Ver107, Jan 18 2011, 22:52:53)
   
   Press Ctrl+B to enter BOOTROM menu... 1
   password: 

3. 输入密码之后，返回bootrom菜单

         BOOTROM  MENU
   
   1. Boot with default mode
   2. Enter serial submenu
   3. Enter startup submenu
   4. Enter ethernet submenu
   5. Enter filesystem submenu
   6. Modify BOOTROM password
   7. Reboot

4. 选择5选项

   Enter your choice(1-7): 5
   
            FILESYSTEM SUBMENU
   
       1. Erase Flash            
       2. Format flash           
       3. Delete file from Flash 
       4. Rename file from Flash 
       5. Display Flash files    
       6. Update EPLD file       
       7. Update FansCard File   
       8. Return to main menu    
   
   Enter your choice(1-8): 

5. 选择4选项查看系统版本

   Enter your choice(1-8): 4
   No. File Size(bytes)     Created Date       File Name
   =================================================================
   1:  1827     bytes   Dec 26 2019 04:35:11   private-data.txt                    
   2:  836      bytes   Dec 26 2019 04:35:33   rr.dat                              
   3:  836      bytes   Dec 26 2019 04:35:47   rr.bak                              
   4:  1060797  bytes   Aug 14 2013 01:31:22   s23_33_53-v100r005sph020.pat        
   5:  1355     bytes   Jan 28 2015 16:18:03   vrpcfg.zip                          
   6:  11113860 bytes   Oct 01 2008 00:08:13   S5300EI-V100R005C01SPC100.cc        
   7:  12240    bytes   Aug 14 2013 01:33:47   $_patchstate_reboot                 
   8:  457619   bytes   Oct 01 2008 00:16:56   s23_33_53-v100r005sph005.pat        
   
   BE CAREFUL!
   This may cause your system fail to start!
   Please choose the file you want to rename:  

6. 输入vrpcfg.zip

   Please choose the file you want to rename:  vrpcfg.zip
   
   Please Input the new filename:  

7. 输入vrpcfg1.zip

   Please Input the new filename:  vrpcfg1.zip
   
   Rename file ......done
   
            FILESYSTEM SUBMENU
   
       1. Erase Flash            
       2. Format flash           
       3. Delete file from Flash 
       4. Rename file from Flash 
       5. Display Flash files    
       6. Update EPLD file       
       7. Update FansCard File   
       8. Return to main menu    
   
   Enter your choice(1-8): 

8. 选择8选项返回bootrom菜单后选择1选项，重启交换机

             BOOTROM  MENU
   
       1. Boot with default mode
       2. Enter serial submenu
       3. Enter startup submenu
       4. Enter ethernet submenu
       5. Enter filesystem submenu
       6. Modify BOOTROM password
       7. Reboot
   
   Enter your choice(1-7): 1