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Hardware Installation Guide for the Cisco 4451-X Integrated Services Router
Chapter 5 ROM Monitor Overview and Basic Procedures
Exiting ROM Monitor Mode
Upgrading the ROMmon for a Router
Use this procedure to upgrade the ROMmon on a router:
Step 1 (Optional) Run the show platform command or the show rom-monitor slot command fon the router to
see the current release numbers of ROMmon on the hardware. See the “Checking the Current ROMmon
Version” section on page 5-2 for information about interpreting the output of the command that you run.
Step 2 If the ROMmon image has not been copied onto the router, copy the PKG file that is made available as
part of this ROMmon release onto the bootflash: or usb[0-1]: file system using the copy source-location
destination-location command. For example, if you are upgrading to Release 15.2(1r)S, copy the
asr1000-rommon.152-1r.S.pkg file.
Step 3 Run the dir file-system command to verify that the ROMmon file is copied into the specified directory.
Step 4 Run the upgrade rom-monitor filename location all command to begin the ROMmon image upgrade,
where location is the path to the ROMmon file.
Caution Do not remove hardware, turn off power, or interrupt the router in any way during the ROMmon upgrade.
Although the router should be able to recover from most interruptions during the ROMmon upgrade,
certain scenarios may cause unpredictable problems.
Step 5 Messages pertaining to the upgrade are displayed on the console. After the display of these messages
stops and the router prompt is available, run the reload command to reload the router.
Step 6 If autoboot has not been enabled by using the config-register 0x2102 command, run the boot
filesystem:/file-location command at the ROMmon prompt to boot the Cisco IOS XE image, where
filesystem:/file-location is the path to the consolidated package file. The ROMmon upgrade is not
permanent for any piece of hardware until the Cisco IOS XE image is booted.
Step 7 Run the enable command at the user prompt to enter the privileged EXEC mode after the boot is
complete.
Step 8 Run the show platform command or the show rom-monitor slot command to verify whether the
ROMmon has been upgraded.
Example of Upgrade
The following sequence of commands is an example of the procedure to upgrade the ROMmon:
Note The release numbers of ROMmon mentioned in this example are for illustrative purposes only.
Router#show rom-monitor r0
System Bootstrap, Version 12.2(20120829:165313) [jhayduk-ESGROM_20120829_DELTA 101],
DEVELOPMENT SOFTWARE
Copyright (c) 1994-2012 by cisco Systems, Inc.
Router#show platform
Chassis type: ISR4451/K9
Slot Type State Insert time (ago)