Re: SATA DVD not found - FreeBSD 8.0-RC1

On Mon October 19 2009 01:01:12 am Alexander Motin wrote:
> Hi.
> 
> Dwayne MacKinnon wrote:
> > On October 18, 2009 12:19:46 pm Gavin Atkinson wrote:
> >> On Sun, 18 Oct 2009, Dwayne MacKinnon wrote:
> >>> Gotta say, for the most part I'm thrilled with 8.0-RC1. Been very solid
> >>> for me, no stability problems. The Linux "Emulation" works great... I
> >>> have everything from Skype and Acrobat8 to UT2004 & Neverwinter Nights
> >>> working.
> >>>
> >>> I just wanted to mention that my SATA DVD writer isn't seen when in
> >>> AHCI mode. The SATA harddrive works great at UDMA150, but the CD drive
> >>> isn't seen. It is seen by BIOS... I can boot off the DVD. But if I boot
> >>> off the HD the DVD isn't seen.
> >>>
> >>> I have an ASUS M4N72-E motherboard and a LG GH22NS50 SATA DVD writer.
> >>>
> >>> I realize that this may be just something that will be worked out when
> >>> 8.0- RELEASE hits the street. But I figured I ought to mention it
> >>> regardless.
> >>
> >> Can you upload a verbose dmesg somewhere and post a link to it to the
> >> mailing list?
> >
> > Done. Sorry, I should've thought of that myself. I've also posted the
> > output from "atacontrol list" just for completeness.
> >
> > http://pastebin.com/m50035eb1  (Verbose dmesg)
> > http://pastebin.com/m4a35199c (atacontrol list)
> 
> For some reason your DVD detected as ATA disk device, not ATAPI during
> bus reset:
> 
> ata4: Identifying devices: 00000001
> 
> ata4: New devices: 00000001
> 
> It caused further problems:
> 
> unknown: FAILURE - ATA_IDENTIFY status=51<READY,DSC,ERROR>
> error=4<ABORTED> LBA=0
> 
> I have alike ASUS M4N78 PRO board and it looked like working fine when I
> last tested. Can you try some other DVD drive on that board? Can you try
> to load ahci module to try new CAM-based AHCI driver (be ready to drive
> names change to adaX)?

I don't have another SATA DVD drive, so I went with your second idea. I added 
ahci_load=YES to loader.conf and reconfigured /etc/fstab so that it booted 
properly. The end result is that I now have a working DVD drive in AHCI mode. 
Thank you very much... I didn't know that ahci driver existed.

I've included an updated verbose dmesg for anyone who's curious.

http://pastebin.com/m41fcc501

Cheers,
DMK