problem with IOS upgrade

From: Sundar Palaniappan (sundar_palaniappan@xxxxxxxxxxx)
Date: Fri Mar 15 2002 - 03:56:54 GMT-3


   
I am trying to upgrade the IOS to 12.1(5)T on a 2501.

It had 8MB Flash and I added another 8MB flash. Router recognizes all the
flash chips.

The upgrade fails constantly half-way through the TFTP process. I tried it
via back-to-back serial connection and via ethernet.

I am begining to suspect the new flash 8MB card even though the router
recognizes it as valid.

Anyone had this problem before?

Here is the error message I am getting during the tftp process.

!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
!
!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
%Error: System flash location 0x3804A54 - wrote 0x22000000, read 0xFF000000

COPY: Text checksum verification failure

TFTP from 172.22.1.100 failed/aborted

Verifying checksum... invalid (expected 0x1212, computed 0x16EF)
Flash copy took 0:04:13 [hh:mm:ss]

Chardin(boot)#show flash chips
16384K bytes of processor board System flash (Read/Write)

   Chip Bank Code Size Name
    1 1 01AD 2048KB AMD 29F016
    2 1 01AD 2048KB AMD 29F016
    3 1 01AD 2048KB AMD 29F016
    4 1 01AD 2048KB AMD 29F016
    1 2 01AD 2048KB AMD 29F016
    2 2 01AD 2048KB AMD 29F016
    3 2 01AD 2048KB AMD 29F016
    4 2 01AD 2048KB AMD 29F016



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