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cisco2600路由器ISO升级失败的处理方法

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

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

rommon 1 > confreg 回车

Configuration Summary

enabled are:

load rom after netboot fails

console baud: 9600

boot: image specified by the boot system commands

or default to: cisco2-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 specified by the boot system commands

or default to: cisco2-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!

~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

(修改回计算机串口与超级终端、路由器confreg下的xmodem等9600的传输速率)

(videre注:实际用的时候,我发现这个命令总是改不成功,后来发现在 line con 0下面有了一个speed 115200,所以即使改register成功,启动以后router又执行speed 115200,还是不行,所以如果有这个问题,记得把这个语句no掉)

Router>en 进入新IOS的特权模式

Router#reload 重启系统

Proceed with reload? [confirm] 回车

00:01:04: %SYS-5-RELOAD: Reload requested

System Bootstrap, Version 11.3(2)XA4, RELEASE SOFTWARE (fc1)
       
       
       
2         如果ios升级失败,2600系列路由器怎么样使用rom模式重新导入ios文
       
Copyright © 1999 by cisco Systems, Inc.

TAC:Home:SW:IOS:Specials for info

PC = 0xfff0a530, Vector = 0x500, SP = 0x680127b0

C2600 platform with 24576 Kbytes of main memory

PC = 0xfff0a530, Vector = 0x500, SP = 0x80004684

monitor: command "boot" aborted due to user interrupt

rommon 1 > confreg ( 输入“confreg”命令)

Configuration Summary

enabled are:

load rom after netboot fails

console baud: 115200

boot: image specified by the boot system commands

or default to: cisco2-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 [7]: 0 (选择 0,改回用标准速率速率9600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: 9600

boot: image specified by the boot system commands

or default to: cisco2-C2600

do you wish to change the configuration? y/n [n]: n

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

rommon 2 >

此时手工改回计算机串口与超级终端2者传输速率为9600

然后敲入

rommon 2 >reset

( 最好关电源)


方法二:

cisco2600升级失败

换台机器,同时换好的console,另外注意波特率 别改错了

以后升级ios可以这样来做,针对26和36

在 rommon 状态下输入:(注意大小写)

rommon 1 >IP_ADDRESS=192.168.0.1(路由器的ip地址)

rommon 2 >IP_SUBNET_MASK=255.255.255.0(路由器的掩码)

rommon 3 >DEFAULT_GATEWAY=192.168.0.2(网关,是pc机的ip地址)

rommon 4 >TFTP_SERVER=192.168.0.2(是pc机的ip地址)

rommon 5 >TFTP_FILE=c2600-i-mz.120-7.T.bin(上传文件的名称)

rommon 6 >sync(保存)

rommon 7 >set(查看)

rommon 8 >tftpdnld(传送文件)出现提示选择y

pc机的设置:

ip地址 192.168.0.2

掩码 255.255.255.0

网关 192.168.0.1(是路由器的ip地址)
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