C-1
Cisco 2600 Series Routers Hardware Installation Guide
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A P P E N D I X
C
Using the ROM Monitor
This appendix describes using the ROM monitor (also called the bootstrap program), which is the
firmware that runs when you power on or restart a Cisco 2600 series router. During normal operation,
the ROM monitor helps to initialize the processor hardware and boot the operating system software. You
can also use the ROM monitor to:
•
Help you isolate or rule out hardware problems encountered when installing your router.
•
Recover your router’s Cisco IOS image if the image becomes corrupted.
This appendix contains the following sections:
•
Entering ROM Monitor Mode, page C-1
•
ROM Monitor Commands, page C-2
•
ROM Monitor Syntax Conventions, page C-3
•
Command Descriptions, page C-3
•
Procedures for Recovering Boot and System Images, page C-6
Entering ROM Monitor Mode
To use the ROM monitor, you must have access to the console port. Refer to the Cisco 2600 Series
Cabling and Setup quick start guide for information on connecting the console cable.
To enter ROM monitor mode follow these steps:
Step 1
Restart the router with the reload command.
Router # reload
Step 2
Press the Break key during the first 60 seconds of the system booting. This forces the router into ROM
monitor mode.
