[Techtalk] trouble mounting cdrom: no medium found

txjulie at austin.rr.com txjulie at austin.rr.com
Sun Feb 23 11:15:44 EST 2003

Conor Daly wrote:
> On Sat, Feb 22, 2003 at 01:54:09PM -0500 or so it is rumoured hereabouts,
> Kathryn Hargreaves thought:
> >
> > Hi,
> >
> > I'm having trouble mounting a cdrom written by my publisher on, I guess,
> > a Windows box (I can read it on a Windows box).  The error I get is:
> >
> >   no medium found
> >
> > I found a patch for ide-cd.c, which I don't have (in RH 7.2).  I'm
> > running the 2.4.7-10 kernel and have an EIDE cdrom.
> >
> > Any ideas?  Would upgrading to RH 8.0 do the trick?  Is there anything
> > short of that that would work?
> At a wild guess, the CD was written using DirectCD which does _not_
> produce ISO9660 filesystems.  Instead it makes a "UDF" CD.  'man mount' on
> _my_ RH72 box says 'udf' is one of the filesystem types available so
> mount -t udf /dev/cdrom /mnt/cdrom
> _may_ work.  OTOH, can you ask your publisher to create the CD using
> CDCreator or Nero instead of DirectCD?

I used to use CDCreator a lot.  My recollection is that it only
creates UDF filesystems on CD-RWs and not on CD-Rs.  One thing
she might want to try is

	dd if=/dev/<cdrom-device> of=/dev/null bs=2k count=1

If that fails there is something wrong with the device or media
and not with the filesystem format on disk.
Julianne Frances Haugh             Life is either a daring adventure
txjulie at austin.rr.com                  or nothing at all.
					    -- Helen Keller

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