dvd+rw problems

[Mikhail Goriachev]

Nick Pegg wrote:
> On 5/26/06, Nick Pegg <nick.pegg at gmail.com> wrote:
>> I'm having some troubles reading and writing DVD+RW discs. I've
>> installed dvd+rw-tools and followed the instructions in the FreeBSD
>> Handbook and searched Google without much luck. Here's the specific
>> errors I'm getting:
>>
>> Trying to mount the disc:
>> server# mount_cd9660 /dev/cd0 /cdrom
>> mount_cd9660: /dev/cd0: Invalid argument
>>
>> Trying to burn stuff to the disc:
>> server# growisofs -Z /dev/cd0 -J -R /root/dumps
>> :-( unable to cam_open_pass("/dev/pass0",O_RDWR): Operation not permitted
>>
>>
>> When trying the same operations with a DVD-R disc, I can successfully
>> mount and read the disc, however I get the same error when trying to
>> write to the disc. The drive can also mount and read CD media just
>> fine. I've double-checked the permissions in /dev and I'm running
>> everything as root, so that shouldn't be a problem.
>>
>> Here's some additional info to help in figuring out what my problem
>> could be:
>>
>> server# camcontrol devlist
>> <TDK DVDRW0404N 1.0A>              at scbus1 target 1 lun 0 (cd0,pass0)
>>
>> Here's some relevant stuff from dmesg:
>> acd0: CDR <CD-ROM! Erive/G6E ! ! ! ! ! ! ! ! ! ! !/M1/31 !> at
>> ata1-master UDMA33
>> acd1: DVDR <TDK DVDRW0404N/1.0A> at ata1-slave UDMA33
>> (probe0:ata1:0:0:0): INQUIRY. CDB: 12 0 0 0 24 0
>> (probe0:ata1:0:0:0): CAM Status: SCSI Status Error
>> (probe0:ata1:0:0:0): SCSI Status: Check Condition
>> (probe0:ata1:0:0:0): ILLEGAL REQUEST info?:1000100 csi:0,1,0,1 asc:24,1
>> (probe0:ata1:0:0:0): Reserved ASC/ASCQ pair
>> (probe0:ata1:0:0:0): Unretryable error
>> cd0 at ata1 bus 0 target 1 lun 0
>> cd0: <TDK DVDRW0404N 1.0A> Removable CD-ROM SCSI-0 device
>> cd0: 33.000MB/s transfers
>> cd0: Attempt to query device size failed: NOT READY, Medium not present
>> g_vfs_done():acd0[READ(offset=65536, length=8192)]error = 5
>> g_vfs_done():acd0[READ(offset=32768, length=2048)]error = 5
>> g_vfs_done():cd0[READ(offset=65536, length=8192)]error = 5
>> (cd0:ata1:0:1:0): READ TOC/PMA/ATIP {MMC Proposed}. CDB: 43 0 0 0 0 0
>> 0 0 4 0
>> (cd0:ata1:0:1:0): CAM Status: SCSI Status Error
>> (cd0:ata1:0:1:0): SCSI Status: Check Condition
>> (cd0:ata1:0:1:0): ILLEGAL REQUEST asc:24,0
>> (cd0:ata1:0:1:0): Invalid field in CDB: Command byte 6 is invalid
>> (cd0:ata1:0:1:0): Unretryable error
>> g_vfs_done():cd0[READ(offset=32768, length=2048)]error = 5
>>
>>
>> Thanks for the help!
>>
>> -Nick
>>
> 
> I've got an update to my problem. I can actually read the disc just
> fine at securelevel 3, but I need to drop down to securelevel 1 in
> order to write to it (/dev/pass0 is a protected device node at
> securelevel 2 and 3).
> 
> Is there a workaround to this, or will I have to drop into single-user
> mode every time I want to write to a DVD?


Hi,

I ran into the same problem years ago. This might help you:

http://www.freebsd.org/gnome/docs/faq2.html#q15

Cheers,
Mikhail.

-- 
Mikhail Goriachev
Webanoide

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