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2005 Jan 13 12:32

The following is an archive of a post made to our 'vox-tech mailing list' by one of its subscribers.

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Re: [vox-tech] Plextor PX-712A not working...
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Re: [vox-tech] Plextor PX-712A not working...



On Thu 13 Jan 05, 12:22 PM, Ken Herron <kherron+lugod@fmailbox.com> said:
> Dylan Beaudette wrote:
> 
> >The [cdrom] drive is connected to the primary IDE channel, and my hard 
> >drive is connected to a serial IDE channel. As of kernel 2.6 my hard drive 
> >is accessed as a SCSI device. However, my cdrom drive does not answer to 
> >requests sent to hda,hdb,hdc,hdd ... nor to any SCSI devices...
> 
> Dylan, are you able to access both the CD and the hard drive from other 
> operating systems or earlier Linux revisions when they're wired this 
> way? I wonder if the motherboard has disabled the primary IDE channel 
> because one of the serial ATA ports is in use, or maybe Linux can't 
> drive both at the same time for some reason. Perhaps moving the CD to 
> the secondary IDE bus would do the trick.

Before swapping hardware, read:


   https://bugzilla.redhat.com/bugzilla/show_bug.cgi?id=136045

which looks familiar.  As Ken states, look for IDE options in BIOS.  Make
sure IDE is not disabled.  If it says "legacy" try changing the option.

Come to think of it,

   /proc/interrupts

should show that IRQs 14 and 15 are given to IDE0 and IDE1.  If you see that
IDE0 and IDE1 aren't given interrupts, then we've discovered something
important about your problem.

Pete


-- 
The mathematics of physics has become ever more abstract, rather than more
complicated.  The mind of God appears to be abstract but not complicated.
He also appears to like group theory.  --  Tony Zee's "Fearful Symmetry"

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