How to upgrade IOS

Answered Question
Oct 4th, 2007
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Hi, my WS-C2970G-24T-E has very old IOS software and is acting a bit strange lately. Spontanious reboots etc. Before completely writing it off, I would like to perform an IOS upgrade to see if that fixes problems.


The switch is running IOS version 12.1(19)EA1c from SW image C2970-I6L2-M.


It has enough memory (128 and 512) to run the latest 12.2 version. I downloaded c2970-lanbase-tar.122-40.SE.tar.


I currently only have a serial cable attached.

How do I proceed with the upgrade?


Correct Answer by uubozou11 about 9 years 6 months ago

There are a few articles on Cisco site and also techrepublics....


http://blogs.techrepublic.com.com/networking/?p=337

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aanthonisse Fri, 10/05/2007 - 01:25
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Thanks, worked like a charm.


I used TFTP32 from Ph. Jounin.


First I made a backup of the current software and configuration with

copy flash:c2970-i6l2-mz.121-19.EA1c/c2970-i6l2-mz.121-19.EA1c.bin tftp

and

copy flash:config.text tftp


then i downloaded the new software with

archive download-sw tftp://172.28.10.3/c2970-lanbase-tar.122-40.SE.tar


System prompted with several easy to answer options and then reported a syuccesfull upgrade.


I reloaded the switch and it worked with the new software.


Thanks again,

Arjan

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