I've got a 2621XM that has not been used for a while.
Completely stripped of any modules and configuration files, the router will continually cycle the startup process without actually booting from the IOS.
The cycle displays the following :
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
program load complete, entry point: 0x80008000, size: 0x10034ec
What I've tried:
1) Downloading another IOS image (c2600-is-mz.123-20.bin) via Xmodem and running "confreg 0x2102" from the rommon.
All that did is change the last message to "program load complete, entry point: 0x80008000, size: 0x10fa95c"
2) Running the command "boot flash:c2600-is-mz.123-20.bin"
If I enable the diagnostics via rommon, the cycle expands to:
System Bootstrap, Version 12.2(8r) [cmong 8r], RELEASE SOFTWARE (fc1)
Copyright (c) 2003 by cisco Systems, Inc.
program load complete, entry point: 0x80008000, size: 0x10fa95c
Testing lower main memory - data equals address
Testing lower main memory - checkerboard
Testing lower main memory - inverse checkerboard
Clearing lower 4K memory for cache initialization
Clearing bss
Reading monitor variables from NVRAM
Enabling interrupts
Enabling instruction cache
Reading cookie
Initializing main memory
Sizing NVRAM
Initializing PCI subsystem
Exiting init
C2600 platform with 131072 Kbytes of main memory
If it wasn't for the lack of error messages, I would assume it was a hardware issue.
If the image was corrupted, I would expect a message indicating that the image couldn't be read.
Any suggestions are welcome.