Cisco Systems 1700 appendix Disaster Recovery with Tftp Download, Tftp Download Command Variables

Appendix B ROM Monitor

Disaster Recovery with TFTP Download

Table B-2describes the ROM monitor boot commands. For more information about the ROM monitor boot commands, refer to the Cisco IOS Configuration Guide and Cisco IOS Command Reference publications.

Table B-2 Boot Commands

Command	Description
b	Boots the first image in Flash memory.
b flash: [filename]	Attempts to boot the image directly from the first partition of Flash
	memory. If you do not enter a filename, this command will boot the
	first image in Flash.
b flash:2: [filename]	Attempts to boot the image directly from the second partition of
	Flash memory. If you do not enter a filename, this command will
	boot the first image in the second partition of Flash memory.

Disaster Recovery with TFTP Download

The standard way to load new software on your router is using the copy tftp flash privileged EXEC command from the Cisco IOS software command-line interface (CLI). However, if the router is unable to boot the Cisco IOS software, you can load new software while in ROM monitor mode.

This section tells how, in ROM monitor mode, to download a Cisco IOS software image from a remote TFTP server to the router Flash memory. Use the tftpdnld command only for disaster recovery because it erases all existing data in Flash memory before downloading a new software image to the router.

Note A 10BASE-T Ethernet Port is not active in ROM monitor mode and, thus, cannot be used for TFTP download.

TFTP Download Command Variables

This section describes the system variables that can be set in ROM monitor mode and that are used during the TFTP download process. There are required and optional variables.

	Cisco 1700 Series Router Software Configuration Guide
78-5407-03		B-5