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Date: Mon, 11 May 2009 12:59:56 -0700
From: Tim Kientzle <kientzle@freebsd.org>
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To: Saifi Khan <saifi.khan@twincling.org>
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Cc: freebsd-current@freebsd.org,
	FreeBSD Questions <freebsd-questions@freebsd.org>
Subject: Re: single SATA disk and yet identified as 'ad4'
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Saifi Khan wrote:
> 
> The system has just one SATA disk and yet bootloader process
> identified it as 'ad4'. Ideally, it should be ad1.
> 
> 00:1f.1 IDE interface: Intel Corporation 82801G (ICH7 Family) IDE Controller (rev 01)
> 00:1f.2 SATA controller: Intel Corporation 82801GBM/GHM (ICH7 Family) SATA AHCI Controller (rev 01)

The ide interface gets ad0, ad1, ad2, ad3,
the sata controller numbering starts with ad4.

Tim