C4503 IOS Deleted and how to load a new updated IOS from Tftp

Answered Question
Sep 18th, 2010
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Hi :

My original intention is to upgrade the C4503 IOS with cat4500-ipbasek9-mz.122-54.SG.bin in the Sup II+ engine. The switch said the space is not enough even after I delete one of the old IOS. By deleting the two old IOS and use Copy tftp flashboot, the switch said the space is still not enough too.

I suspect it has to reload but it is too late becaue all the IOS are gone. So, after reload, the switch only boot to ROMMON.

Can anybody help to resolve this problem? Thanks!

Correct Answer by Lei Tian about 6 years 9 months ago


This link might be able to help you.

Follow the instruction from 'Recover from a Corrupt or Missing image'



Lei Tian

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Overall Rating: 5 (1 ratings)
Tang-Suan Tan Sat, 09/18/2010 - 11:31
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Hi Lei Tian :

Thanks for your link and I learned the setting the fail over ip and default gateway and got the tftp from my PC.

The problem is finally resolved! Thanks!


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