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Date: Wed, 24 Oct 2007 18:39:23 -0400
From: "Aryeh M. Friedman" <aryeh.friedman@gmail.com>
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To: Sean Farley <sean@farley.org>
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Cc: freebsd-hardware@freebsd.org
Subject: Re: RELENG_7 DVD drive access in AHCI/SATA mode
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Sean Farley wrote:
> I have recently assembled a new system with a SATA DVD drive.
> Unfortunately, it seems to not be supported FreeBSD 7:
>
> ata7: <ATA channel 5> on atapci0
> ata7: SATA ATAPI devices not supported yet
> ata7: [ITHREAD]

This is (semi-) fixed in 8-Current (reports sata/300 as sata/150 on
actual storage devices)
>
>
> I am using software (BIOS) RAID on a P5K-E/WiFi (Intel P35 chipset)
> board.  Sadly, the option to manually configure the DVD drive is only
> available when in IDE mode.

P35's in general have some issues.   For example I am still totally
unable to see my PATA drives if I have SATA drive(s) installed.
>
> In the interim, is it possible to force the drive to IDE (really UDMA)
> mode?  I tried a few attempts at the kernel source to force it to UDMA33
> at the point of the warning in ata-chipset.c, but these resulted in
> panics.

I have an old 7 patch if you want it.