Rom Monitor Commands - Cisco Catalyst 4500 Series Configuration Manual

ROM Monitor Commands

To configure the router to boot up in ROM monitor mode the next time it is rebooted, perform this task:
Command
Step 1
Switch# configure terminal
Step 2
Switch(config)# config-reg 0x0
Step 3
Switch(config)# exit
Step 4
Switch# reload
ROM Monitor Commands
Enter ? or help at the ROM monitor prompt to display a list of available commands and options, as
follows:
rommon 1 >
alias
boot
confreg
dev
dir
help
history
meminfo
repeat
reset
set
sysret
unalias
unset
Commands are case sensitive. You can halt any command by pressing the Break key on a terminal. If
you are using a PC, most terminal emulation programs halt a command when you press the Ctrl and the
Break keys at the same time. If you are using another type of terminal emulator or terminal emulation
software, refer to the documentation for that product for information on how to send a Break command.
Software Configuration Guide—Release IOS XE 3.3.0SG and IOS 15.1(1)SG
71-2
?
set and display aliases command
boot up an external process
configuration register utility
list the device table
list files in file system
monitor builtin command help
monitor command history
main memory information
repeat a monitor command
system reset
display the monitor variables
print out info from last system return
unset an alias
unset a monitor variable
Chapter 71
Task
Enters global configuration mode.
Resets the configuration register.
Exits global configuration mode.
Reboots the router with the new configuration
register value. The router remains in ROM
monitor and does not boot the Cisco IOS
software.
As long as the configuration value is 0x0, you
must manually boot the operating system from
the console. See the boot command in the
Monitor Command Descriptions" section in this
appendix.
After the router reboots, it is in ROM monitor
mode. The number in the prompt increments
with each new line.
ROM Monitor
"ROM
OL-25340-01