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2005 Jan 13 10:58

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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,  1:30 PM, p <p> said:
> On Thu 13 Jan 05, 10:35 AM, Dylan Beaudette <debeaudette@ucdavis.edu> said:
> > On Thursday 13 January 2005 10:16 am, Peter Jay Salzman wrote:
> > > On Thu 13 Jan 05, 10:18 AM, Dylan Beaudette <dylan@iici.no-ip.org> said:
> > > > Hi everyone,
> > > >
> > > > I haven't bothered to try out the CDROM drive on this machine since linux
> > > > was installed, and now with a 2.6 series kernel my CDROM drive has
> > > > vanished! (or at least from the perspective of commands like mount)
> > > >
> > > > The 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...
> > > >
> > > > I googled for a possible kernel module that I need in order to use this
> > > > drive, but didn't seem to find any pages suggesting that.
> > > >
> > > > also -- my kern.log and dmesg output don't even mention the drive...
> > > >
> > > > Any ideas would be quite helpful!
> > >
> > > Hi Dylan,
> > >
> > > If this is 2.6 we're talking about, do:
> > >
> > >    modprobe -a ide_cd
> > >
> > > If it says "module not found", look in your .config file to see if the
> > > module was built into the kernel.
> > >
> > > Also, ide_cd and ide-scsi are mutually orthogonal.  Make sure that ide-scsi
> > > is NOT enabled (or that the module is NOT loaded).
> > >
> > > Also, remove any arguments like:
> > >
> > >    hdX=ide-scsi
> > >
> > > that you may be passing to the kernel via lilo or grub.
> > >
> > > HTH,
> > > Pete
> > >
> > > PS- Ignore cdrecord -scanbus.  It's useless now.  You access the drive
> > > using the IDE name, as in:
> > >
> > >    cdrecord dev=/dev/hdX etc etc etc...
> > 
> > thanks for the ideas Pete!
> > 
> > here is the breakdown: 
> > ide_cd module was loaded
> > ide-scsi module was not loaded
> > 
> > kernel arguments are limited to:
> > root=/dev/sda3 ro
> > 
> > ... i just checked in the internal connections, and the drive seems to be 
> > connected properly. The drive mechanics (tray eject) seem to work fine, and 
> > the machine is only about 6 months old...
> > 
> > I'm stumped!
>  
> Hy Dylan,
> 
> I'm sure there's a perfectly logical explanation.  There almost always is.
> :)
> 
> You said that the cd drive doesn't show up in dmesg.  Fine.
> 
> But does your *scsi card* show up in dmesg?
> 
> Do you have the proper low level scsi card driver installed?
> 
> Pete

Ack!  Brain death.  Sorry.  Your Plextors are IDE, not SCSI.

Sorry!

Pete (sheepish grin)
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