Re: ATAPI CD-Rom Illegal request...
Jens Axboe (axboe@image.dk)
Thu, 16 Sep 1999 00:13:12 +0200
On Wed, Sep 15 1999, Todd Sabin wrote:
> I've seen similar errors, as well:
>
> Sep 13 17:56:57 banzai2 kernel: ATAPI device hdc:
> Sep 13 17:56:57 banzai2 kernel: Error: Illegal request -- (Sense key=0x05)
> Sep 13 17:56:57 banzai2 kernel: Illegal mode for this track or incompatible medium -- (asc=0x64, ascq=0x00)
> Sep 13 17:56:57 banzai2 kernel: hdc: command error: status=0x51 { DriveReady SeekComplete Error }
> Sep 13 17:56:57 banzai2 kernel: hdc: command error: error=0x54
> Sep 13 17:56:57 banzai2 kernel: end_request: I/O error, dev 16:00 (hdc), sector 1446
>
> [root@banzai2 /root]# cat /proc/ide/hdc/model
> NEC CD-ROM DRIVE:28B
>
> This was on a normal CD-ROM drive, but the CD in question was burned
> by HP DirectCD on NT. The errors only occurred when I was trying to
> dd if=/dev/hdc .... It was repeatable any time I tried to access
> certain blocks. I didn't see any errors if I mounted the CD and just
> used the filesystem on it.
You can't do that on all sectors on a packet written disc,
so the error is very reasonable. You'll have to settle with
filesystem access on these CD's.
--
* Jens Axboe <axboe@image.dk>
* Linux CD-ROM Maintainer
* http://www.kernel.dk
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