首先下载官方的交换机bin文件：

下载地址：http://www.h3c.com.cn/Service/Software_Download/

下载相应的bin文件后，再下载一个TFTP上传工具：

下载地址：http://download.csdn.net/detail/aiqixiao1015/9411807

然后配置下TFTP工具的上传目录即可；

第一步：开启交换机，进入Boot Menu菜单，删除bin.bak（由于空间不足）

=========<EXTEND-BOOTWARE MENU>===============
|<1> Boot System                 |
|<2> Enter Serial SubMenu        |
|<3> Enter Ethernet SubMenu      |
|<4> File Control                |
|<5> Restore to Factory Default Configuration   |
|<6> Skip Current System Configuration          |
|<7> BootWare Operation Menu                    |
|<8> Clear Super Password                       |
|<9> Storage Device Operation                   |
|<0> Reboot                                     |
=============================================
Ctrl+Z: Access EXTEND-ASSISTANT MENU
Ctrl+F: Format File System
Enter your choice(0-9): 4

第二步：然后 ：

==========<File CONTROL>===============
|Note:the operating device is flash             |
|<1> Display All File(s)                        |
|<2> Set Application File type                  |
|<3> Set Configuration File type                |
|<4> Delete File                                |
|<0> Exit To Main Menu                          |
================================================
Enter your choice(0-4): 1

第三步：然后

Display all file(s) in flash:
'M' = MAIN      'B' = BACKUP      'S' = SECURE      'N/A' = NOT ASSIGNED
===============================================================
|NO. Size(B)   Time                 Type   Name            |
|1   2832      Apr/26/2000 12:03:16 N/A    private-data.txt   |
|2   2610      Apr/26/2000 12:03:34 M      startup.cfg       |
|3   1024831   Apr/27/2000 05:04:13 N/A    logfile/logfile.log |
|4   151       Apr/26/2000 12:03:24 N/A    system.
|5   12530688  Aug/01/2000 12:13:11 N/A    ~/s5048pv2_ei-cmw520-r1106~001 |
|6   12530688  Aug/01/2000 12:13:19 N/A    ~/s5048pv2_ei-cmw520-r1106~002 |
|7   4031      Aug/01/2000 12:13:30 N/A    ~/_startup_bak.cfg   |
|8   2610      Apr/26/2000 12:03:28 N/A    _startup_bak.cfg     |
=====================================
===========<File CONTROL>=================
|Note:the operating device is flash        |
|<1> Display All File(s)                   |
|<2> Set Application File type             |
|<3> Set Configuration File type           |
|<4> Delete File                           |
|<0> Exit To Main Menu                     |
============================================
Enter your choice(0-4): 4

第四步：删除：

Deleting the file in flash:
 'M' = MAIN      'B' = BACKUP      'S' = SECURE      'N/A' = NOT ASSIGNED
======================================================
|NO. Size(B)   Time                 Type   Name      |
|1   2832      Apr/26/2000 12:03:16 N/A    private-data.txt   |
|2   2610      Apr/26/2000 12:03:34 M      startup.cfg        |
|3   1024831   Apr/27/2000 05:04:13 N/A    logfile/logfile.log |
|4   151       Apr/26/2000 12:03:24 N/A    system.
|5   12530688  Aug/01/2000 12:13:11 N/A    ~/s5048pv2_ei-cmw520-r1106~001 |
|6   12530688  Aug/01/2000 12:13:19 N/A    ~/s5048pv2_ei-cmw520-r1106~002 |
|7   4031      Aug/01/2000 12:13:30 N/A    ~/_startup_bak.cfg      |
|8   2610      Apr/26/2000 12:03:28 N/A    _startup_bak.cfg      |
|0   Exit                                                               |
===================================================
Enter file No:6

第五步：配置IP

======<EXTEND-BOOTWARE MENU>===========
|<1> Boot System                              |
|<2> Enter Serial SubMenu                    |
|<3> Enter Ethernet SubMenu                  |
|<4> File Control                            |
|<5> Restore to Factory Default Configuration   |
|<6> Skip Current System Configuration          |
|<7> BootWare Operation Menu                   |
|<8> Clear Super Password                    |
|<9> Storage Device Operation                |
|<0> Reboot                               |
===================================================
Ctrl+Z: Access EXTEND-ASSISTANT MENU
Ctrl+F: Format File System
Enter your choice(0-9): 3

第六步：然后 ：

==========<Enter Ethernet SubMenu>================
|Note:the operating device is flash               |
|<1> Download Application Program To SDRAM And Run   |
|<2> Update Main Application File    |
|<3> Update Backup Application File   |
|<4> Update Secure Application File   |
|<5> Modify Ethernet Parameter       |
|<0> Exit To Main Menu               |
|<Ensure The Parameter Be Modified Before Downloading!>  |
=============================================
Enter your choice(0-5): 5

第七步然后 ：

======<ETHERNET PARAMETER SET>=========
|Note:       '.' = Clear field.      |
|            '-' = Go to previous field.    |
|          Ctrl+D = Quit.            |
===========================================================
Protocol (FTP or TFTP) :tftp 
Load File Name         :S5048PV2_EI-CMW520-R1107.bin
​                       :
Target File Name       :target
​                       :
Server IP Address      :192.168.2.1 
Local IP Address       :192.168.2.2 
Gateway IP Address     :0.0.0.0 

第八步：然后 ：

======<Enter Ethernet SubMenu>=============
|Note:the operating device is flash              |
|<1> Download Application Program To SDRAM And Run      |
|<2> Update Main Application File              |
|<3> Update Backup Application File          |
|<4> Update Secure Application File          |
|<5> Modify Ethernet Parameter               |
|<0> Exit To Main Menu                     |
|<Ensure The Parameter Be Modified Before Downloading!>      |
============================================
Enter your choice(0-5): 1

第九步：开始上传：

第十步：使用以下命令上传一份bin文件

<H3C>tftp 192.168.0.2 get S5048PV2_EI-CMW520-R1107.bin S5048PV2_EI-CMW520-R1107.bin
192.168.0.2为TFTP服务器地址，即PC地址

第十一步：使用以下命令写入boot启动文件：

<H3C>boot-loader file flash:/S5048PV2_EI-CMW520-R1107.bin slot 1 main