RE: 2.6.16.16 Lost CD-ROM Drive

[Rogelio_Noriega]

I think Jeremy is on the right track what worked for me on a M70 and M90
is adding "hda=noprobe" on the kernel commandline or in grub.

Roger  

-----Original Message-----
From: linux-precision-bounces@xxxxxxxx
[mailto:linux-precision-bounces@xxxxxxxx] On Behalf Of Jeremy L. Moles
Sent: Thursday, February 01, 2007 9:05 AM
To: Brian D. McGrew
Cc: linux-kernel@xxxxxxxxxxxxxxx; linux-precision-Lists
Subject: Re: 2.6.16.16 Lost CD-ROM Drive

On Thu, 2007-02-01 at 07:00 -0800, Brian D. McGrew wrote:
> Hey guys-
> 
> Have a Precision workstation with SATA hard drive and SATA CD-ROM.  If

> I load Fedora Core 5 with a stock 2.6.15 kernel, life is good.
> 
> However, I need to use 2.6.16.16.  Once I build and install this 
> kernel, my CD-ROM drive is gone.  There is a log entry in dmesg that 
> says "ATAPI not support.  Ignoring."
> 
> If I go into the BIOS and set the SATA operations to Legacy/Compatible

> then everything is fine.  I've rebuilt this kernel about 100 times 
> trying everything I can think of.
> 
> When I have SATA set to legacy, the HDD and CD are detected as 
> /dev/hd* and when they're set to SATA Normal operation the HDD is 
> detected as /dev/sda.  If I boot my old 2.6.15 (stock install) kernel 
> then the CD is found as /dev/sdc.
> 
> I've even tried taking the installation default configuration file for

> the 2.6.15 kernel and just wholesale copying it into my 2.6.16.16 
> kernel and build that way but still no go.
> 
> What am I missing to get the 2.6.16.16 kernel to see a SATA CD-ROM 
> drive in normal, non-legacy move?

Try booting 2.6.16 with the following options:

libata.atapi_enabled=1 ide0=noprobe ide1=noprobe

> -brian
> 
> Brian D. McGrew        { brian@xxxxxxxxxxxxx ||
> brian@xxxxxxxxxxxxxxxxxxx }
> --
> > Do not read this email while waxing that cat! 
> 
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