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List:       packet-writing
Subject:    Problem formatting re-writable discs
From:       "Chris Clayton" <chris () theclaytons ! freeserve ! co ! uk>
Date:       2002-05-03 14:51:57
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Hi, I've previously mailed this to the equivalent udf mailing lsi but had no
response - maybe I'm asking in the wrong place :-(

 I have built 2.4.19-pre7, updated with udf 0.9.6 from sourceforge and
patched with
packet-2.4.91-pre4.patch made by Peter Osterlund. udf and pktcdvd are
compiled into kernel rather
than as modules (although I've also built with these as modules and it makes
no difference).

When I try to format a rewritable disk I get the following:

#cdrwtool -d /dev/hdc -t 2 -q

using device /dev/hdc
setting speed to 2
1600kb internal buffer
setting write speed to 2x
setting for /dev/hdc
      Fixed packets, size 32
      Mode-2 disc

I'm going to do a quick setup of /dev/hdc...

Initiating quick disc blank
wait-cmd: Input/Output error
Command failed: 51 00 00 00 00 00 00 00 02 00 00 00 - sense 02.04.07
read disc info: Illegal seek
can't unlock door

#dmesg shows:

 VFS: Disk change detected on device ide1(22,0)
 cdrom: This disc doesn't have any tracks I recognize!
 hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
 hdc: packet command error: error=0x50
 ATAPI device hdc:
   Error: Illegal request -- (Sense key=0x05)
   Command sequence error -- (asc=0x2c, ascq=0x00)
   The failed "Prevent/Allow Medium Removal" packet command was:
   "1e 00 00 00 00 00 00 00 00 00 00 00 "
 hdc: packet command error: status=0x51 { DriveReady SeekComplete Error }
 hdc: packet command error: error=0x50
 ATAPI device hdc:
   Error: Illegal request -- (Sense key=0x05)
   Command sequence error -- (asc=0x2c, ascq=0x00)
   The failed "Prevent/Allow Medium Removal" packet command was:
   "1e 00 00 00 00 00 00 00 00 00 00 00 "

Exactly the same error occurs if I leave out the -t 2 argument.

H/W config is:

AMD K6-III+ @550MHz
FIC VA503+ Mobo with 256MB RAM
/dev/hda is 40GB HDD - single partition with Win98SE on
/dev/hdb is DVD drive
/dev/hdc is Mitsumi CR-4802TE CDRW drive
/dev/hdd is 8.4GB HDD partitioned as 8GB Linux Ext3, 128MB Linux swap and
remainder as a FAT32 partition which I share between Win and Linux

I am using cdrwtool from udftools-1.0.0b2.

I'm out of my depth now so would be grateful for any advice about how I can
fix this.

Thanks in advance.

Chris



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