Cisco 4500M Software Manual page 70

Modifying the Supervisor Engine Startup Configuration
Enter the configure terminal command at the EXEC mode prompt (#), as follows:
Step 2
Switch# configure terminal
Enter configuration commands, one per line. End with CNTL/Z.
Switch(config)#
Step 3 Configure the configuration register to 0x102 as follows:
Switch(config)# config-register 0x102
Set the contents of the configuration register by specifying the value command variable, where value is
a hexadecimal number preceded by 0x (see
Enter the end command to exit configuration mode. The new value settings are saved to memory;
Step 4
however, the new settings do not take effect until the system is rebooted.
Enter the show version EXEC command to display the configuration register value currently in effect;
Step 5
it will be used at the next reload. The value is displayed on the last line of the screen display, as shown
in this sample output:
Configuration register is 0x141 (will be 0x102 at next reload)
Save your settings. (See the
Step 6
on page
when you enter a reload command from the console.)
Reboot the system. The new configuration register value takes effect with the next system boot up.
Step 7
Verifying the Configuration Register Setting
Enter the show version EXEC command to verify the current configuration register setting. In
ROMMON mode, enter the show version command to verify the configuration register setting.
To verify the configuration register setting for the switch, perform this task:
Command
Switch# show version
In this example, the show version command indicates that the current configuration register is set so that
the switch does not automatically load an operating system image. Instead, it enters ROMMON mode
and waits for you to enter ROM monitor commands.
Switch#show version
Cisco Internetwork Operating System Software
IOS (tm) Catalyst 4000 L3 Switch Software (cat4000-IS-M), Experimental
Version 12.1(20010828:211314) [cisco 105]
Copyright (c) 1986-2001 by cisco Systems, Inc.
Compiled Thu 06-Sep-01 15:40 by
Image text-base:0x00000000, data-base:0x00ADF444
ROM:1.15
Switch uptime is 10 minutes
System returned to ROM by reload
Running default software
Software Configuration Guide—Release 12.2(25)EW
3-22
"Saving the Running Configuration Settings to Your Start-up File" section
3-10. Note that configuration register changes take effect only after the system reloads, such as
Chapter 3 Configuring the Switch for the First Time
Table 3-3 on page 3-20).
Purpose
Displays the configuration register setting.
OL-6696-01