Chapter 3 Initial Switch Router Configurations

Updating the System Image

To reload the switch router with the new system image in boot flash memory, perform the following steps, beginning in global configuration mode:

 

Command

Purpose

Step 1

 

 

Router(config)# config-register 0x0

Sets the configuration register for manual booting from ROM

 

 

monitor mode.1

Step 2

Router(config)# end

Returns to privileged EXEC mode.

 

Router#

 

Step 3

 

 

Router# copy system:running-config

Saves your configuration changes to NVRAM.

 

nvram:startup-config

 

Step 4

 

 

Router# reload

Initiates a reload of the system software. You then enter ROM

 

rommon 1>

monitor mode.

 

 

Step 5

 

 

rommon 1> dir boot flash:

Displays the contents of the file system. Perform this optional

 

 

step to display and copy the name of the system image to the

 

 

clipboard for use in Step 6.

Step 6

 

 

rommon 1> boot boot flash:filename

Reboots the switch router with the new system image. You

 

 

can paste the filename from the clipboard if you copied it in

 

 

Step 5.

Step 7

 

 

Router> show version

Displays the system software version information. Use this

 

 

step to confirm that the system is loaded with the expected

 

 

software version.

 

 

 

1.For details on using the configuration register to set boot parameters, refer to the Cisco IOS Configuration Fundamentals Configuration Guide.

The following example shows setting the configuration register, saving the configuration, and reloading the switch router with the new image on the boot flash memory SIMM.

Router# configure terminal

Router(config)# config-register 0x0

Router(config)# end

Router#

4d00h: %SYS-5-CONFIG_I: Configured from console by console Router#copy system:running-config nvram:startup-config Destination filename [startup-config]?

Building configuration...

[OK]

Router# reload

Proceed with reload? [confirm]

rommon

1

>

dir bootflash:

 

 

 

 

File size

Checksum

File name

3173128

bytes (0x306b08)

0x799f

cat2948g-in-mz.120-7.W5.14.45

3173364

bytes (0x306bf4)

0x755f

cat2948g-in-mz.120-7.W5.14.46

rommon

2

>

boot bootflash:cat2948g-in-mz.120-7.W5.14.46

Self decompressing the image : #################################################

################################################################################

################################################################################

################################################################## [OK]

<The system boots>

 

 

Catalyst 2948G-L3 and Catalyst 4908G-L3 Software Feature and Configuration Guide

 

 

 

 

 

 

 

78-10408-01, Cisco IOS Release 12.0(7)W5(15d)

 

 

3-17

 

 

 

 

 

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Cisco Systems 3 Routerconfig# config-register, Router# copy systemrunning-config, Nvramstartup-config, Router show version

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