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Date: Fri, 16 May 2003 00:49:03 -0400
From: Chuck Swiger <cswiger@mac.com>
Organization: The Courts of Chaos
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Subject: Re: ad0: READ command timeout - a common problem i think
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Brian wrote:
[ ... ]
> ad0: READ command timeout
> ata0: resetting devices

Do you have a good cable?  Have you tried cranking the speeds down to 
UDMA-33 or even PIO, just to see whether that solves the problem long 
enough to complete the install?

-Chuck