"Erich J. Ritzmann" wrote:
> [5]/var/log/messages contains repeated instances of:
> Jun 16 12:58:36 bach kernel: sr0: CDROM (ioctl) error, command:
> UNKNOWN(0x42) 02 40 01 00 00 00 00 10 00
> Jun 16 12:58:36 bach kernel: extra data not valid Current error sr00:00:
> sense key Hardware Error
> Jun 16 12:58:36 bach kernel: Additional sense indicates Track following
> error
> Jun 16 12:58:43 bach kernel: sr0: CDROM (ioctl) error, command:
> UNKNOWN(0x42) 02 40 01 00 00 00 00 10 00
> Jun 16 12:58:43 bach kernel: extra data not valid Current error sr00:00:
> sense key Hardware Error
> Jun 16 12:58:43 bach kernel: Additional sense indicates Track following
> error
This indicates a hardware problem in the CD device itself.
> [6]recreating the problem:
> Simply placing an audio CD into the drive and starting the CDPLAYER
> software.
Do you get the same problem on more than one CD? If you get this on one audio
CD then I would claim a defective CD (judging by the above messages). If you
get this on all CDs then I would guess a mis-mounted CD device.
> [8.2]/var/log/messages associated with the cdrecord failure:
> Jun 16 06:44:16 bach modprobe: can't locate module char-major-97
> Jun 16 06:44:16 bach last message repeated 3 times
> Jun 16 06:44:16 bach kernel: (scsi0:0:3:0) Performing Domain
> validation.
> Jun 16 06:44:16 bach kernel: (scsi0:0:3:0) Successfully completed
> Domain validation.
> Jun 16 06:44:35 bach modprobe: can't locate module char-major-97
> Jun 16 06:44:35 bach last message repeated 3 times
> Jun 16 07:19:58 bach kernel: scsi : aborting command due to timeout
> : pid 129455, scsi0, channel 0, id 0, lun 0 Write (10) 00 00 4d 00
> a5 00 00 02 00
> Jun 16 07:19:58 bach kernel: scsi : aborting command due to timeout
> : pid 129456, scsi0, channel 0, id 0, lun 0 Write (10) 00 00 50 45
> 87 00 00 02 00
> Jun 16 07:19:58 bach kernel: SCSI host 0 abort (pid 129456) timed
> out - resetting
> Jun 16 07:19:58 bach kernel: SCSI bus is being reset for host 0
> channel 0.
> Jun 16 07:19:58 bach kernel: (scsi0:0:3:0) Synchronous at 4.4
> Mbyte/sec, offset 15.
> Jun 16 07:19:58 bach kernel: (scsi0:0:0:0) Synchronous at 40.0
> Mbyte/sec, offset 8.
That looks suspiciously like a cdrecord issue, but I wouldn't know for sure
since I don't have a CD-R at the moment. However, I would recommend you check
your CD-R drives mounting screws and use the following suggestions:
A) Always use 3 screws to mount your CD devices. With 3 screws, a slightly
warped mounting area will not place excessive stress on the CD device, while 4
screws can. Try to use two central screws holes on each side and then either
one front or back screw hole on one side as the 3 points of contact.
B) Make sure the mounting screws are not too long and that tightening down the
mounting screws does not cause stress on the CD-R chassis. If the mounting
area is slightly over width and tightening the screws down causes the sides of
the CD-R to bulge outward as oppossed to pulling in the sides of the mounting
are then all sorts of alignment problems can creep up.
Most of the time when I see CD devices with track following issues that aren't
limited to specific CDs, it is 99% of the time mounting related, and sometimes
that mounting related problem is a permanent damage issue as well.
--
Doug Ledford <[EMAIL PROTECTED]>
Opinions expressed are my own, but
they should be everybody's.
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