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prom cookie corrupt on 1841?

I have a Cisco 1841 router that refuses to boot properly: depending on the IOS I try I get different errors or crashes. When I start the router with c1841-ipbase-mz.123-11.T5.bin, I can get to the console prompt. But I get 2 eeprom read errors and an 'Unable to create driver for Port Adaptor' error), and it does not show any interfaces.

It also shows a very unusual 'sh ver':

Cisco 1841 (revision 0.0) with 114688K/16384K bytes of memory.

Processor board ID

DRAM configuration is 64 bits wide with parity disabled.

191K bytes of NVRAM.

31360K bytes of ATA CompactFlash (Read/Write)

(notice the wrong revision, missing SN and interfaces)

and sh diag gives a blank output.

When I got to rommon and run cookie I think this showes too many ff values in the first bytes:

rommon 5 > cookie


04 ff 09 86 ff ff ff ff ff ff ff ff ff ff ff ff

4f 43 30 39 32 32 30 36 41 50 40 04 1b 41 05 00

82 49 1f ff 05 42 42 30 c0 46 03 20 00 5b 8a 02

88 00 00 00 00 02 04 c6 8a 49 50 4d 37 46 30 ....

I tried removing all wics, erasing nvram, different Compactflash card, upgrading rommon, and a dozen different IOS versions.

Any suggestions?



Re: prom cookie corrupt on 1841?


Though you have mentioned about removing WICS,have you tried booting the box without inserting them ? if you have done this already and since you have tried all possible permutations/combinations the well known suggestion would be to open up a TAC case on this ..


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