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Purchased used 3640 router, having rommon problems

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capefear

Technical User
Sep 18, 2005
23
US
Hello, I just recieved a used 3640 router from ebay and when i powered it up this is the message i recieved can anyone help tried some show command but it says show not found, nor version commands. ACCESSSERVER con0 is now available





Press RETURN to get started.



System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFT
Copyright (c) 1998 by cisco Systems, Inc.


Warning: FLASH socket 0 is empty.
C3600 processor with 16384 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled

bus error while trying to access flash - addr = 0x30000000
cannot read flash info
getdevnum warning: device "flash" has size of zero
bus error while trying to access flash - addr = 0x30000000
cannot read flash info
getdevnum warning: device "flash" has size of zero
open: read error...requested 0x4 bytes, got 0x0
trouble reading device magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Copyright (c) 1998 by cisco Systems, Inc.


Warning: FLASH socket 0 is empty.
C3600 processor with 16384 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled

PCMCIA Slot0: No Card Present

System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Copyright (c) 1998 by cisco Systems, Inc.


Warning: FLASH socket 0 is empty.
C3600 processor with 16384 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled

PCMCIA Slot1: No Card Present

System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Copyright (c) 1998 by cisco Systems, Inc.


Warning: FLASH socket 0 is empty.
C3600 processor with 16384 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled

bus error while trying to access
cannot read flash info
getdevnum warning: device "flash" has size of zero
bus error while trying to access flash - addr = 0x30000000
cannot read flash info
getdevnum warning: device "flash" has size of zero
open: read error...requested 0x4 bytes, got 0x0
trouble reading device magic number
boot: cannot open "flash:"
boot: cannot determine first file name on device "flash:"

System Bootstrap, Version 11.1(19)AA, EARLY DEPLOYMENT RELEASE SOFTWARE (fc1)
Copyright (c) 1998 by cisco Systems, Inc.


Warning: FLASH socket 0 is empty.
C3600 processor with 16384 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled

rommon 1 > en

monitor: command "en" not found
rommon 2 > show version

monitor: command "show" not found
rommon 3 > show flash

monitor: command "show" not found
rommon 4 >
 
Hi,

Looking at the initial error messages it looks as if the 3640 has entered rommon as it has been unable to load an IOS image (cannot read flash info).

After failing to read the onboard flash memory, it looks as if it's checked the 2 PCMCIA slots on the 3640 to see if these are populated with any PCMCIA flash that could have a useable IOS on them. As there are no flash cards present, it's final option is to enter ROMMON to provide a limited set of recovery commands.

It may be more fruitful to try and determine what's going on with the onboard flash memory, rather than worrying about ROMMON. You could start by opening up the 3640 and checking to see if the flash is physically present. If it is, it may be worth reseating the flash memory, in case it has come loose in transit.

As you've recently purchased this off e-bay it may also be worth contacting the vendor to discuss the issue ASAP as there may be a time limit for returns.

The below link is for upgrading the memory on 3600's and details the internal layout of the router and how to open the chassis.


Good luck!
 
Wow thanks alot jus, I will most certainly check inside the chasis and then contact the vendor, its funny my intial purchase from this vendor was the 3620 and he stated in an email that he would upgrade to the 3640 because the 3620's ios was corrupted, lol and now it seems this 3640 he sent is bad as well.
 
Hey jus, i found the problem and you were 100% correct. I opened the chasis and looked at the flash, they had it seated in bank 1 instead of bank 0 as the cisco website suggested and you pointed out. Thanks alot you really helped and now i dont' have to make that nasty call/email to the vendor. Peace.
 
I would still make the call for all the hardache they caused!!!!

“Reserve your right to think, for even to think wrongly is better than not to think at all”

CCNA,CCNP,CIPT, Network+
Tek-TIP Member 19,650
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