Cisco Systems 4840G appendix Backing Up a System Image to a TFTP Server

Chapter 3 Configuring the Catalyst 4840G Processor

Using Flash PC Cards

Step 6

Step 7

Command	Purpose
SLB-Switch#copy system:running-config	Save the configuration to NVRAM.
nvram:startup-config
SLB-Switch# reload	Reboot the system.

When you enter boot commands, be careful not to insert extra spaces because they affect the way the SLB switch interprets the command. For example, notice the difference in the following commands.

The following command correctly instructs the SLB switch to boot the image1 file:

SLB-Switch(config)#boot system flash slot0:image1

The following command incorrectly contains a space between “slot0:” and “image2.” The SLB switch finds the filename field blank and boots the first file on the Flash PC card.

SLB-Switch(config)#boot system flash slot0: image2

Backing Up a System Image to a TFTP Server

To create a backup copy of your system image, or to verify that the copy in Flash memory is the same as the original file on disk, you can copy system images from Flash memory to a Trivial File Transfer Protocol (TFTP) server.

In some implementations of TFTP, you must create a dummy file on the TFTP server and give it read, write, and execute permissions before copying the file over it. Refer to your TFTP documentation for more information.

Before you copy software between the network server and Flash memory in the SLB switch, perform these tasks:

•Make sure you have access to the network server, and obtain its IP address and name.

•Verify that the server has sufficient room to accommodate the Cisco IOS software image.

•Check the filename requirements and file space on the network server.

To create a backup of the system software on a TFTP server, perform this task:

	Command	Purpose
Step 1	SLB-Switch# cd filesystem:	Change the Flash device to the slot that holds the Flash PC
		card.
Step 2	SLB-Switch#show flash all	Display the contents of Flash memory, including the names
		of the images that currently reside there.
		Note the name of the image file you want to copy.
Step 3	SLB-Switch#copy flash tftp:	Copy a file from Flash memory to a TFTP server. Be sure to
		include a colon at the end of the tftp keyword, as shown in
		this example.

The following example demonstrates copying a specified system image file from the current flash device to the default TFTP server:

SLB-Switch#copy flash tftp:

Source filename []? cat4840G-in-mz.X.bin

Address or name of remote host [172.8.1.129]? y

Destination filename [cat4840G-in-mz.X.bin]? y

Catalyst 4840G Software Feature and Configuration Guide

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