Poblems with my DVD Dual Layer.

[perikillo]

   Hi people.

   I bought one DVD Sony [DVD RW DRU-820A ][2.0c]

   Is external USB, now i have been trying to test this drive, i setup my
kernel with all the requirements(from handbook), my dmesg say this:

pass0 at umass-sim0 bus 0 target 0 lun 0
pass0: <SONY DVD RW DRU-820A 2.0c> Removable CD-ROM SCSI-0 device
pass0: 1.000MB/s transfers

pass1 at ata0 bus 0 target 1 lun 0
pass1: <MATSHITA UJDA330 1.50> Removable CD-ROM SCSI-0 device
pass1: Serial Number [
pass1: 16.000MB/s transfers
GEOM: new disk cd0
GEOM: new disk cd1
ATA PseudoRAID loaded

(Internal CD-RW)
(cd1:ata0:0:1:0): error 6
(cd1:ata0:0:1:0): Unretryable Error
cd1 at ata0 bus 0 target 1 lun 0
cd1: <MATSHITA UJDA330 1.50> Removable CD-ROM SCSI-0 device
cd1: Serial Number [
cd1: 16.000MB/s transfers
cd1: Attempt to query device size failed: NOT READY, Medium not present

(My DVD)
(cd0:umass-sim0:0:0:0): error 6
(cd0:umass-sim0:0:0:0): Unretryable Error
cd0 at umass-sim0 bus 0 target 0 lun 0
cd0: <SONY DVD RW DRU-820A 2.0c> Removable CD-ROM SCSI-0 device
cd0: 1.000MB/s transfers
cd0: Attempt to query device size failed: NOT READY, Medium not present
(cd0:umass-sim0:0:0:0): error 6
(cd0:umass-sim0:0:0:0): Unretryable Error
(cd0:umass-sim0:0:0:0): error 6
(cd0:umass-sim0:0:0:0): Unretryable Error
(cd0:umass-sim0:0:0:0): error 6
(cd0:umass-sim0:0:0:0): Unretryable Error

(cd1:ata0:0:1:0): error 6
(cd1:ata0:0:1:0): Unretryable Error
(cd1:ata0:0:1:0): error 6
(cd1:ata0:0:1:0): Unretryable Error
(cd1:ata0:0:1:0): error 6
(cd1:ata0:0:1:0): Unretryable Error

Trying to mount root from ufs:/dev/ad0s1a

Unretryable Error

This error is not new, my backup server have one Tape that always send this
message went it mounts the Tape && is working very well.

cd1 is my internal CD-RW(Laptop)

Went i want to test my DVD:


bsblaptop# dvd+rw-mediainfo /dev/cd0
INQUIRY:                [SONY    ][DVD RW DRU-820A ][2.0c]
:-( unable to GET CONFIGURATION: Input/output error
Input/output error

I still cannot do to much with my device, the model is Sony DRX-820U.

Some tips about? this mean that i cannot use my device..?

Thanks all for you time!!!

FreeBSD 6.1-p10