Cisco Cisco IOS Software Release 11.0(20)BT Guide De Dépannage

Introduction
 Prerequisites
      Requirements
      Components Used
      Conventions
 Find a Valid Image in Flash
      Download Using TFTP from ROMmon
      Download Using X−modem from ROMmon
 Related Information

This document describes how to recover a Cisco 1700 series router stuck in ROM monitor (ROMmon)
(

rommon#

 > prompt).

There are no specific requirements for this document.

The information in this document is based on this hardware version:

Cisco 1700 Series Routers

• 

The information presented in this document was created from devices in a specific lab environment. All of the
devices used in this document started with a cleared (default) configuration. If you are working in a live
network, ensure that you understand the potential impact of any command before using it.

For more information on document conventions, refer to the Cisco Technical Tips Conventions.

The first thing you need to do is issue the dir flash: command for each available device, and look for a valid
Cisco IOS® Software image.

rommon 3 > dir flash:

         File size           Checksum   File name 

   3307884 bytes (0x804b4c)   0x6ba0    c1700−ny−mz.121−6.bin 

rommon 4 >