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From: Gavin Atkinson <gavin@FreeBSD.org>
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To: Barney Cordoba <barney_cordoba@yahoo.com>
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Subject: Re: SATA drive device moving on 8.0 current
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On Wed, 28 Jan 2009, Barney Cordoba wrote:

> I booted 8.0-current on a machine that was running 7 and the SATA drive
> came up as ad4 instead of ad8 (as it is detected in 7). This is the case
> was loading GENERIC.
>
> This is going to present a serious problem doing field upgrades as its
> expected that fstab will be the same. What is the reason for the change and
> is there any way to make it compatible with device detection in 7?

I suspect the problem is caused by some changes made in -CURRENT a few 
months ago, which had the potential to change the order that some devices 
may be detected.

Can you post online a dmesg from both 7.x and 8.0 somewhere?

Gavin