New CD-ROM drive causes kernel panic

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On Wed, 2005-12-28 at 08:24 -0500, Alfred von Campe wrote:
> Thanks for all the responses.
> 
> > You might want to first check your BIOS settings for the CDROM drive,
> > and then the data cable. I really don't think there is such a thing
> > as an incompatible CDROM, but I have seen some BIOS settings making
> > CDROM drives behave weirdly.
> 
> What type of BIOS settings are you talking about?  The system is  
> currently up and running, so I can't easily check it (but I'll  
> probably reboot it later today).
look for DMA settings for the drive. turning DMA off could help

> 
> The master/slave setting is set to exactly the same setting (slave)  
> as the CD-ROM drive it replaced (there is another drive on that same  
> cable).  And how do I change the DMA settings?  I think this is what  
> may be causing the problem.  Linux currently doesn't recognize the  
> drive, as it is disconnected.  But I believe it's /dev/hdb (although  
> it might be /dev/hdd).  There are two hard disks at /dev/hda and /dev/ 
> hdc that are mirrored together and mounted as /home.
> 
As this does not seem the cause of the problem, I would tend to suspect
the cable. Is the cable Ultra-DMA capable (high density  80 wires)? In
any case, replace it with anUltra-DMA capable cable

Louis    



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