Cisco Systems 520 series manual ROM Monitor Commands, Reload

Appendix C ROM Monitor

ROM Monitor Commands

Step 4

Step 5

Timesaver

Command	Purpose
exit	Exits global configuration mode.
reload	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 “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.

Break (system interrupt) is always enabled for 60 seconds after the router reboots, regardless of whether it is set to on or off in the configuration register. During this 60-second window, you can break to the ROM monitor prompt by pressing the Break key.

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	set and display aliases command
	boot	boot up an external process
	break	set/show/clear the breakpoint
	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
	copy	Copy a file-copy [-b <buffer_size>] <src_file> <dst_file>
	delete	Delete file(s)-delete <filenames ...>
	dir	List files in directories-dir <directory>
	dis	display instruction stream
	dnld	serial download a program module
	format	Format a filesystem-format <filessystem>
	frame	print out a selected stack frame
	fsck	Check filesystem consistency-fsck <filesystem>
	help	monitor builtin command help
	history	monitor command history
	meminfo	main memory information
	mkdir	Create dir(s)-mkdir <dirnames ...>
	more	Concatenate (type) file(s)-cat <filenames ...>
	rename	Rename a file-rename <old_name> <new_name>
	repeat	repeat a monitor command
	reset	system reset
	rmdir	Remove a directory
	set	display the monitor variables
	stack	produce a stack trace
	sync	write monitor environment to NVRAM
	sysret	print out info from last system return
	tftpdnld	tftp image download
	unalias	unset an alias
	unset	unset a monitor variable
	xmodem	x/ymodem image download
	Cisco Secure Router 520 Series Software Configuration Guide
C-2		OL-14210-01