Problem upgrading cisco 1841 to 12.4(15)T

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Mar 19th, 2009
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I'm trying to upgrade my cisco 1841 to 12.4(15)T IOS (to use an additional network adapter) but for the moment I can't. I delete from flash:/ the old image file 12.4(3i) and then I upload, with tftp, the new file c1841-ipbasek9-mz.124-15.T.bin. When I do the reload the router can't boot and enter the rommon mode. The message is:


"Readonly ROMMON initialized

program load complete, entry point: 0x8000f000, size: 0xcb80

program load complete, entry point: 0x8000f000, size: 0xcb80


program load complete, entry point: 0x8000f000, size: 0x177037c


*** TLB (Store) Exception ***

Access address = 0x454e

PC = 0x802000f0, Cause = 0xc, Status Reg = 0x3041e803


monitor: command "boot" aborted due to exception


System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport

Copyright (c) 2006 by cisco Systems, Inc.

PLD version 0x10

GIO ASIC version 0x127

c1841 platform with 131072 Kbytes of main memory

Main memory is configured to 64 bit mode with parity disabled"


From the rommon mode I can reload the old good image file and restart the router correctely.


Thanks very mutch.


Riccardo Maciocco


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Edison Ortiz Thu, 03/19/2009 - 07:54
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Riccardo,


It may be a sign the image is corrupted.


Upload the image once again and make sure to run a verify on the image before rebooting the router


http://www.cisco.com/en/US/docs/ios/fundamentals/command/reference/cf_t1.html#wp1028453


The md5 output from the verify should match the md5 printed on the download page.


HTH,


__


Edison.

Leo Laohoo Thu, 03/19/2009 - 14:44
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