Chapter 5 Troubleshooting Initial Startup Problems

Boot Prompt: (boot)#

Step 3 Copy the boot helper (boot loader) image from the TFTP server to flash memory as follows:

Router# copy tftp bootflash:

Address or name of remote host []? 10.7.0.99 Source filename []? c7201-boot-mz.122-4.BW Destination filename [c7201-boot-mz.122-4.BW]?

Loading c7201-boot-mz.122-4.BW from 10.7.0.99 (via GigabitEthernet0/3):

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[OK - 5137928/10275840 bytes]

5137928 bytes copied in 45.420 secs (114176 bytes/sec)

This completes the procedure for upgrading your boot helper (boot loader) image. For more detailed instructions on loading and maintaining system images and microcode, including boot helper images, refer to the Cisco IOS Configuration Fundamentals Configuration Guide, which is available on Cisco.com.

Boot Prompt: (boot)#

Use this procedure to recover a router stuck at the boot prompt:

Step 1 Ensure you have connectivity to the TFTP host that is storing the Cisco IOS image by using the ping command to ping the TFTP host.

7201(boot)# ping 2.0.0.2

Type escape sequence to abort.

Sending 5, 100-byte ICMP Echos to 2.0.0.2, timeout is 2 seconds:

!!!!!

Success rate is 100 percent (5/5), round-trip min/avg/max = 1/1/1 ms

Step 2 Copy the valid Cisco IOS image on the TFTP server to the CompactFlash Disk using the copy tftp destination-flash-file-systemcommand and follow the prompts.

7201(boot)# copy tftp disk0:

Address or name of remote host [2.0.0.2]? Source filename []? path/path/c7200p-js-mzDestination filename [c7200p-js-mz]?

Accessing tftp://2.0.0.2/path/path/c7200p-imagename...

Loading path/path/c7200p-imagename from 2.0.0.2 (via FastEthernet0/0):

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

!!!!!!!!!!! ...

[OK - 22174032 bytes]

22174032 bytes copied in 44.188 secs (501811 bytes/sec)

Step 3 Set the configuration register to 0x0 using the config-register 0x0 command so the router will reboot in ROMmon mode.

7201(boot)# configure terminal

7201(boot)(config)# config-register 0x0

Cisco 7201 Installation and Configuration Guide

 

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Cisco Systems CISCO7201 manual Boot Prompt boot#, Router# copy tftp bootflash, 7201boot# copy tftp disk0