思科2811突然断电不启动

会员85884

接到客户一台思科2811路由器 突然断电后不能进启动了 通电后进入超级终端看到没有报错提示 于是进入rommon模式输入以下命令问题解决。
rommon 4 >confreg
Configuration Summary :
=> load rom after netboot fails
=> console baud: 9600
=> autoboot from: commands specified in 'BOOT' environment variable
do you wish to change the configuration? y/n  [n]:  y
enable  "diagnostic mode"? y/n  [n]:  y
enable  "use net in IP bcast address"? y/n  [n]:  n
disable "load rom after netboot fails"? y/n  [n]:  y
enable  "use all zero broadcast"? y/n  [n]:  n
enable  "break/abort has effect"? y/n  [n]:  n
enable  "ignore system config info"? y/n  [n]:  n
change console baud rate? y/n  [n]:  n
change the boot characteristics? y/n  [n]:  y
enter to boot:
0 = disable autoboot
1 = the first file from internal flash device
2 = commands specified in 'BOOT' environment variable
[2]:  1
Configuration Summary :
=> diagnostic mode
=> console baud: 9600
=> autoboot from: the first file from internal flash device
do you wish to save this configuration? y/n  [n]:  y
You must reset or power cycle for new configuration to take effect

rommon 5 >boot
回车
主要的目的就是改变BOOT的特性，来让设备boot时，从内部闪存（internal flash）启动，至此，问题解决