Chapter 7: Manually Loading System Images

no boot system flash configuration command to revert to booting from ROM. For example, you might want to revert to booting from ROM if you do not yet need this functionality, if you choose to boot from a network server, or if you do not have the proper image in Flash memory. After you enter the no boot system flash com- mand, use the copy running-configstartup-configcommand to save the new configuration command to the startup con- figuration.

Copy Configuration Files from the Router to a Network

Server

You can copy configuration files from the router to a TFTP server. You might do this to back up a current configuration file to a server before changing its contents, allowing you to later restore the original.

Usually, the configuration file that you copy to must already exist on the TFTP server and be globally writable before the TFTP server al lows you to write to it.

To store configuration information on a TFTP network server, com- plete these tasks in the EXEC mode:

1.Specify that the running or startup configuration file be stored on a network server.

copy {running-config startup-config} tftp

2.Enter the IP address of the network server. ip-address

3.Enter the name of the configuration file to store on the server. filename

4.Confirm the entry. y

The command prompts you for the destination host's address and a filename, as the following example illustrates. This example copies configuration file from a router to a TFTP server:

Tokyo# copy running-config tftp Remote host [131.108.2.155]?

Name of configuration file to write [tokyo-confg]?

Write file tokyo-confg on host 131.108.2.155?[confirm] y

#

Writing tokyo-confg!!! [OK]

August 1997

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AIS AI2524 Copy Configuration Files from the Router to a Network Server, Copy running-config startup-config tftp