Using the ROM Monitor
ROM Monitor Command Conventions
188
Cisco VGD 1T3 Voice Gateway Software Configuration Guide
ROM Monitor Command Conventions
Following are ROM monitor command conventions:
•
Brackets [ ] denote an optional field. If a minus option is followed by a colon (for example: [-s:]),
you must provide an argument for the option.
•
A word in italics means that you must fill in the appropriate information.
•
All address and size arguments to the memory-related commands are assumed to be hexadecimal
(no “0x” prefix or “h” suffix needed).
•
The options [-bwl] for the memory-related commands provide for byte, word, and longword
operations. The default is word.
•
You can invoke the memory-related commands by entering the command with no arguments. This
causes the utility to prompt you for parameters. This option is available for the commands marked
as prompting.
•
All the built-in commands can be aborted (user interrupt signal) by pressing the Break key at the
console.
•
You can place more than one command (except the repeat command) on a line by using the
semicolon delimiter.
Command Aliasing
The ROM monitor supports command aliasing modeled on the aliasing function built into the Korn shell.
The alias command is used to set and view aliased names. This allows you to alias command names to
a letter or word. Aliasing is often used to shorten command names or automatically invoke command
options.
Aliases are stored in NVRAM and remain intact across periods of no power. These are some of the set
aliases:
b = boot
h = history
i = reset
r = repeat
k = stack
? = help
ROM Monitor Commands
At the ROM monitor prompt, enter ? or help at the
rommon n >
prompt to display a list of available
commands and options, as follows:
rommon 2 >
help
alias set and display aliases command
boot boot up an external process
confreg configuration register utility
cont continue executing a downloaded image
context display the context of a loaded image
cookie display contents of cookie PROM in hex
dev list the device table
dir list files in file system
dis disassemble instruction stream
frame print out a selected stack frame
