troubleshooting Question

Cisco 870 Flash Upgrade

Avatar of paulbelsham
paulbelshamFlag for United Kingdom of Great Britain and Northern Ireland asked on
RoutersNetworkingSwitches / Hubs
9 Comments1 Solution2961 ViewsLast Modified:
Hi Experts
I have a Cisco 871W ISR and I purchased 32meg of flash to replace the standard 4meg chip that came with my router.  The router has 20meg onboard flash anyway so I knew that removing the additional 4meg chip would effectively cause the router to boot into ROMmon mode (which it did)  My problem is this.
I seem to be unable to boot into router boot mode  "Router (boot)" after changing the conf register to 0x2101
The router continually boots with the following message regardless how I set the conf register

System Bootstrap, Version 12.3(8r)YI4, RELEASE SOFTWARE
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2006 by cisco Systems, Inc.

C870 series (Board ID: 3-148) platform with 131072 Kbytes of main memory

No bootable image file: flash:/
Unable to open boot file

rommon 1 >

The contents on flash is as follows

rommon 1 > dir flash:
Directory of flash:/

4    -rwx  931840    <date>               es.tar
5    -rwx  1505280   <date>               common.tar
6    -rwx  1038      <date>               home.shtml
7    -rwx  112640    <date>               home.tar
8    -rwx  2242560   <date>               wlanui.tar
9    -rwx  660       <date>               vlan.dat

47583232 bytes available (4800512 bytes used)

as you can see there is no IOS image or cfg file

If I go through the motion of setting an ip address on the machine using the IP_ADDRESS command it accepts it but the TFTP transfer times out.  
Do I need to set the ip address on one of the switchport interfaces like I would expect to do in router boot mode, the 871 has a 4 port switch built into it and Im not exactly sure what ethernet port it would use (suffice to say I have tried them all)

any help would be much appreciated, I'm sure Im missing out something very simple

Paul
Join the community to see this answer!
Join our exclusive community to see this answer & millions of others.
Unlock 1 Answer and 9 Comments.
Join the Community
Learn from the best

Network and collaborate with thousands of CTOs, CISOs, and IT Pros rooting for you and your success.

Andrew Hancock - VMware vExpert
See if this solution works for you by signing up for a 7 day free trial.
Unlock 1 Answer and 9 Comments.
Try for 7 days

”The time we save is the biggest benefit of E-E to our team. What could take multiple guys 2 hours or more each to find is accessed in around 15 minutes on Experts Exchange.

-Mike Kapnisakis, Warner Bros