more information on my trouble reading CDROM's with hdc=ide-cd. Anybody else?
pauljohn at ku.edu
Thu Nov 18 00:14:47 UTC 2004
Now we are talking!
Rebooted with ide-cd and put in a cdrom and that irq timeout crapola
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
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...
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
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