1．拔掉交換機的電源線                                                       

 

2．用超級終端和控制線連到交換機，超級終端的設置是：                         

　　9600 baud rate                                                 

　　No parity                                                            

　　8 data bits                                                       

　　1 stop bit                                                         

　　No flow control                                               

 

3．按住交換機前面板“mode”按鈕；插上電源線， 當端口1上面的燈不亮后，放松“mode”按鈕，

 

4．這時超級終端上應該顯示：                                                 

　　The system has been interrupted prior to initializing the flash file system.

 

　　The following commands will initialize the flash file system, and finish loading

 

　　the operating system software:                 

 

　　flash_init                                                         

　　load_helper                                                       

　　boot                                                                      

 

5．輸入flash_init                                                 

 

6．輸入load_helper

 

7．輸入dir flash:

　　這時顯示：

　　Directory of flash:                                       

　　2 -rwx 843947 Mar 01 1993 00:02:18 C2900XL-h-mz-112.8-SA

  　4 drwx 3776 Mar 01 1993 01:23:24 html

　　66 -rwx 130 Jan 01 1970 00:01:19 env_vars

  　68 -rwx 1296 Mar 01 1993 06:55:51 config.text

 

 1728000 bytes total (456704 bytes free)

 

 

8．輸入rename flash:config.text flash:config.old

9．輸入boot，重新啟動系統(tǒng)                                                

 

10．系統(tǒng)啟動完后顯示：Continue with the configuration dialog? [yes/no] : 輸入N                                                                       

 

11.輸入enable

 

12.進入enable模式后，輸入rename flash:config.old flash:config.text

 

 

13．接著按以下步驟操作：

 

Switch# copy flash:config.text system:running-config

 

Source filename [config.text]? (press Return)

Destination filename[running-config]? (press Return)

 

14．接著按以下步驟操作：

switch#configure terminal

switch(config)#no enable secret

switch(config)#no enable password

switch(config)#exit

switch#write memory

 

這時,系統(tǒng)就恢復沒有密碼的狀態(tài)了

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