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can't copy image when upgrading memory

Posted on 2004-08-23
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Last Modified: 2008-03-03
I got a 2611 router, I upgraded the Dram and flash on it.  I did tftpdnld and got the router pulling the ios image from my tftp server, but when it completes copying, i get this error:

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
File reception completed.
TFTP copy: operation terminated due to bad checksum comparison.
rommon 14 >

now why is this?  when i reboot the router, it says there's no valid flash as well.
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Question by:Pentrix2
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JFrederick29 earned 500 total points
ID: 11869249
Bad checksum means that most likely the IOS image is corrupted.  You may want to download the IOS image from Cisco's site again and retry the copy to flash.
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by:Pentrix2
ID: 11869290
i've redownloaded the image, and still the same problem.
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by:JFrederick29
ID: 11869326
I wonder if the Flash memory you upgraded with is bad?
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by:Pentrix2
ID: 11869400
i loaded another ios that i know that's good too.  this sucks because i just purchased the memory new.  :(
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by:JFrederick29
ID: 11869414
Sure sounds like it is bad memory.  Do you have another router laying around that you could test the memory in just to be sure?
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by:Pentrix2
ID: 11869425
not with me now, my spare routers are at work.  will have to try it later on.  thanks JFrederick29.
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by:Pentrix2
ID: 11872112
Hey JFrederick29, I had to use xmodem transfer.  I was hopping not to do the xmodem because it's a pain to compared to tftpdnld.  :)

Just wanted to let you know.  :)
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by:JFrederick29
ID: 11872164
Strange, never seen that before.
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by:naomiprice
ID: 20045318
copy tftpdnld
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