用xmodem重新快速灌IOS

钱塘在线

先打开超级终端，进入rommon 模式（Ctrl+Break组合键），键入confreg, 如下：
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rommon 1 > confreg 回车

Configuration Summary
enabled are:
load rom after netboot fails
console baud: 9600
boot: image specifd by the boot system commands
or default to: cio2-C2600

do you wish to change the configuration? y/n [n]: y (选择 yes)
enable "diagnostic mode"? y/n [n]: n (选择 no)
enable "use net in IP bcast address"? y/n [n]: n (选择 no)
disable "load rom after netboot fails"? y/n [n]: n (选择 no)
enable "use all zero broadcast"? y/n [n]: n (选择 no)
enable "break/abort has effect"? y/n [n]: n (选择 no)
enable "ignore system config info"? y/n [n]: n (选择 no)
change console baud rate? y/n [n]: y (选择 yes)
enter rate: 0 = 9600, 1 = 4800, 2 = 1200, 3 = 2400
4 = 19200, 5 = 38400, 6 = 57600, 7 = 115200 [0]: 7 (选择 7,用最大的115200速率的xmodem传输)
change the boot characteristics? y/n [n]: n (选择 no)

Configuration Summary
enabled are:
load rom after netboot fails
console baud: 115200
boot: image specifd by the boot system commands
or default to: cio2-C2600

do you wish to change the configuration? y/n [n]: n (选择 no)

You must reset or power cycle for new config to take effect

rommon 2 > reset 回车

注意：在此时键入 reset键之前，开始定义串口速度（我的电脑---端口属性----串口速度调为115200），然后再修改超级终端里设置速率为115200，记住，一定这么做！否则出现乱码！ 然后关闭这个超级终端，重新建立一个超级终端连接，（期间系统重新启动）启动后，出现

rommon 1> 提示符
然后,输入
rommon 1> xmodem -r

Do not start the sending program yet...

Invoke this application only for disaster recovery.
Do you wish to continue? y/n [n]: y (选择 yes)
Ready to receive file ...

此时，在超级终端的菜单上的“传送”---“发送文件”----选择IOS镜像文件所在地以及选择使用“xmodem”协议，点击“发送”即可

然后等待10-20分钟左右就把3-6M的IOS灌进去了！

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（修改回计算机串口与超级终端、