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2524 12.3 Crashing Loop

I posted this on GS but I am not sure that it was sent out. I appreciate any of my fellow cisco friends help on this 2524 issue! Below will be a cut and paste from my Post:

Guys/Ladies-

How do I fix this mess? I upgraded the ios to 12.3 (Must have been the wrong one.) It was small enough to fit into flash and when it loaded it had a memory allocation failure. Then it tries to load from the TFTP server where I got the image from. Below: Any help is appreciated!

Restricted Rights Legend

Use, duplication, or disclosure by the Government is

subject to restrictions as set forth in subparagraph

(c) of the Commercial Computer Software - Restricted

Rights clause at FAR sec. 52.227-19 and subparagraph

(c) (1) (ii) of the Rights in Technical Data and Computer

Software clause at DFARS sec. 252.227-7013.

cisco Systems, Inc.

170 West Tasman Drive

San Jose, California 95134-1706 Cisco Internetwork Operating System Software

IOS (tm) 2500 Software (C2500-IS-L), Version 12.3(13b), RELEASE SOFTWARE (fc2)

Technical Support:

formatting link
Copyright (c) 1986-2005 by cisco Systems, Inc.

Compiled Thu 11-Aug-05 15:58 by alnguyen

Image text-base: 0x0307D43C, data-base: 0x00001000

SYSTEM INIT: INSUFFICIENT MEMORY TO BOOT THE IMAGE!

%Software-forced reload

Unexpected exception to CPU vector 34, PC = 3396110

-Traceback= 3396110 337724C 3377A78 339CBE8 3389A1C 3389C3E 363E80C

339133E 33913BC 32B0298 32B05D4

=== Flushing messages () ===

Buffered messages:

Queued messages:

*Mar 1 00:00:08.491: %SYS-3-LOGGER_FLUSHING: System pausing to ensure console debugging output.

*Mar 1 00:00:08.147: %SYS-2-MALLOCFAIL: Memory allocation of 4000 bytes failed from 0x339CBE0, alignment 0

Pool: Processor Free: 0 Cause: Not enough free memory

Alternate Pool: I/O Free: 0 Cause: Not enough free memory

-Process= "Init", ipl= 4, pid= 3

-Traceback= 33771CE 3377A78 339CBE8 3389A1C 3389C3E 363E80C 339133E

33913BC 32B0298 32B05D4

Unexpecte

System Bootstrap, Version 11.0(10c), SOFTWARE

Copyright (c) 1986-1996 by cisco Systems

2500 processor with 2048 Kbytes of main memory

SERVICE_MODULE(0): self test finished: Passed

%SERVICE_MODULE-4-ACCESSERROR: Unit 0 reports register access error - bad register value supplied

Loading c2500-is-l.123-13b.bin from 192.168.1.100 (via Ethernet0): !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! [buffer overflow - 1205760/1205542 bytes]

F3: 15283864+878576+940428 at 0x3000060

System Bootstrap, Version 11.0(10c), SOFTWARE

Copyright (c) 1986-1996 by cisco Systems

2500 processor with 2048 Kbytes of main memory

SERVICE_MODULE(0): self test finished: Passed

Loading c2500-is-l.123-13b.bin ... [timed out]

F3: 15283864+878576+940428 at 0x3000060

Reply to
william
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You don't have enough DRAM in the router to run the image. Buy enough DRAM to max out the router.

If you can't, then you'll have to break into the boot ROM image, wipe flash, and TFTP in one that will work for you.

Reply to
Doug McIntyre

As the last writer indicated, you seem to have upgraded to an image that needs more DRAM in the system than you have right now. So, adding more memory to the system is the only option if you need to run the version you loaded.

In the meantime, you can recover by booting into the rxboot image on the router. To do that, while the system is in the booting loop, just keep sending breaks to the system. There is small window during bootup when breaks will be accepted even if the config register indicates that breaks are to be ignored. Once the break takes effect, you will end up in rommon with the rommon prompt (which will be ">").

At the rommon, type o to see the current value of the config register and then type o/r 0x0 to change the config register to 0x0. Then type "i" to reset the system and you should see the rommon banner and then the rommon prompt. Now at the prompt, type b and press return. That will cause the rxboot image to get booted. That image does not include IP routing functionality but you should be able to erase flash to purge the image you loaded and use a network interface to TFTP in a version that you know will work on the system. Finally, change the "boot system" command to indicate that this new image should be loaded, change the config register back to what it was before (from the output of the rommon "o" command) and reload the system. That should result in you getting back to a working system image.

Cisco da Gama

formatting link

Reply to
ciscodagama

cool name man.

I actually ended up taking off the top of the router, in frustration! Then I swapped the order of the 2 x 8mb flash. (thinking that it would not recognize the ios.) and then default into boot>

This IS actually what happened. I could not believe it worked!!!!! Then I tftp'd smaller 12.1 image onto the box, but it did not ask me to erase the current ios to make room. But before I could do that (tftping) I had to erase the 2 newly created partitions I had made by swapping the RAM order. Then I needed to combine the flash "partition 1

16." Then copied the flash from tftp. Reloaded. Then when I wanted to reload; it was trying to boot the image from: boot system tftp 255.255.255.255.. which would screw up every time. After I entered "no system boot" and wrote it to mem. It reloaded fine by default!

Now I ordered the correct amount of DRAM 16 and it will be here in 2 days. I wanted to show step by step in case someone was interested.

Reply to
william

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