Messages in this thread | | | Date | Thu, 16 Sep 1999 00:13:12 +0200 | From | Jens Axboe <> | Subject | Re: ATAPI CD-Rom Illegal request... |
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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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