more information on my trouble reading CDROM's with hdc=ide-cd. Anybody else?

[Paul Johnson]

Now we are talking!

Rebooted with ide-cd and put in a cdrom and that irq timeout crapola 
started spewing.

But then I realized I needed to try to stop the "automounter" or 
whatever that hal thing is.  So I pushed the eject button and waited for 
error messages to clear, then topped haldaemon.  And then

SUCCESS! with:

mount -t iso9660 /dev/cdrom /mnt/cdrom

That worked with a CDR I wrote.

I was suspicious that this reallly fixed it, then unmounted and tried

mount /dev/cdrom /mnt/cdrom

And those irq timeout errors happened again.

What next? Can I configure the hal or udev to get this right?

I don't really see what haldaemon does for me anyway.  I suppose it 
would mount a usb stick if I put it in? (don't have one, though). When I 
first installed FC3, the dos partitions and unused fc3 partitions were 
listed as /media/idedisk1, /media/idedisk2, and so forth. But those 
disappeared, I have no idea why...

pj

Alan Cox wrote:
> On Wed, Nov 17, 2004 at 04:12:38PM -0600, Paul Johnson wrote:
> 
>>option or with hdc=ide-cd, I CAN mount cdrom's printed at the factory 
>>(Microsoft, for example), but cannot mount CDRs that I write.  I found 
>>at least one bug reporter who contended that the way Fedora core 2 
>>writes the "last part" of a CDR is not managed well by the ide-cd 
>>module.  On the other hand, ide-scsi can mount either kind of disk.
> 
> 
> Wonderful, I think you've made the little lightbulb come on.  It had been
> baffling me why this affects iso mounting and I suddenely have an idea.
> 
> Can you try ide-cd and do
> 
> 	mount -t iso9660 ....
> 
> with a CD-R and see if that works
> 
> 
>>Here's what I don't understand: If there is some bug in CD reading, why 
>>doesn't it affect all Linux systems.  Why just a few of us?
> 
> 
> Some drives told to read over the end of the true media appear to report
> no error and compensate in firmare, somne appear to throw errors at the
> kernel in protest. Both behaviours are legal for the drive.
> 


-- 
Paul E. Johnson                       email: pauljohn at ku.edu
Dept. of Political Science            http://lark.cc.ku.edu/~pauljohn
1541 Lilac Lane, Rm 504
University of Kansas                  Office: (785) 864-9086
Lawrence, Kansas 66044-3177           FAX: (785) 864-5700