Installation guide

Cisco 4500-M and Cisco 4700-M ROM Monitor F-3
Entering the ROM Monitor Program
The following case-sensitive ROM monitor commands are among the most useful:
• help—The help command prints a summary of the ROM monitor commands to the
console screen.This is the same output as entering ?.
• boot or b—Boot an image. The boot command with no arguments will boot the first
image in boot Flash memory. You can include an argument, filename, to specify a file
to be booted over the network using the Trivial File Transfer Protocol (TFTP). The local
device (see the description of the b device command following) can be specified by
entering the device specifier (devid). If the specified device name is not recognized by
the ROM monitor, the system will attempt to boot the image (imagename) from a
network TFTP server. Do not insert a space between devid and imagename. Options to
the boot command are -x, load image but do not execute, and -v, verbose. The form of
the boot command follows:
boot [-xv] [ devid ][ imagename ]
b—Boots the default system software from ROM.
b filename [host]—Boots using a network TFTP server. When a host is specified, either
by name or IP address, the boot command will boot from that source.
b flash:—Boots the first file in Flash memory.
b device:—Boots the first file found in the Flash device. The Flash device specified can
be either flash:, to boot the Cisco Internetwork Operating System (Cisco IOS) software,
or bootflash:, to boot the boot image in Flash memory.
b device:name—An extension of the above command, allows you to specify a particular
filename in the flash memory.
• reset or i—Resets and initializes the system, similar to power on.
• dev—Lists boot device identifications on the router.
For example:
rommon 10 > dev
Devices in device table:
id name
flash: flash
bootflash: boot flash
eprom: eprom