Re: [Sheflug] strange problem with CDROM...

[Guennadi Liakhovetski <nospam [at] ragingbull.com>]

On Thu, 15 Mar 2001, Will Newton wrote:

> On Thu, 15 Mar 2001, Guennadi Liakhovetski wrote:
> 
> > I've got a pretty new machine here (P-II ~750MHz), I recently compiled a
> > 2.4.2 kernel for it, it's working fine, but... I just noticed - I can't
> > mount cds!... cdrom is detected at start-up, /dev/hdb looks fine, as
> > suggested i CDROM-HOWTO I checked dd if=/dev/hdb of=/dev/null bs=2048 it
> > returned immediately with 0+0 blocks in/out... (yes, there's a cd in the
> > drive). It worked before with 2.2.14... (SuSE-6.4) And - what's the most
> > weird - as cdrom module gets loaded - at the same time lp parport and
> > parport_pc do!... WHY???... I checked - nothing like parallel ide was
> > compiled... Is anything wrong somewhere with /dev stuff? Can't see any
> > problems there... Or modules.config?... Ideas?
> 
> Have you got the latest modutils?

Sure - 2.4.2, as required in Documentation/Changes. Notice - for dd you
don't need ANY software support AT ALL (?), apart from a valid /dev/XXX
node. However, hdparm -i /dev/hdb shows info ok, as well as hdparm
-I... One thing that was changed from previous 2.2.14 kernel -
IDE-SCSI-emulation (for a tape drive) - it's compiled into kernel... Can
this cause the problem? But the CD-ROM is detected at boot-up as
/dev/hdb...

> Also I believe there have been audio CD problems in 2.4.1/2.4.2.
> If you try the ac patches there may be a fix.

No, it's a usual ISO-9660 disk...

Guennadi

> 
> 
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___

Dr. Guennadi V. Liakhovetski
Department of Applied Mathematics
University of Sheffield, U.K.
email: G.Liakhovetski [at] sheffield.ac.uk



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