DVD-RW drive
Predrag Punosevac
punosevac at math.arizona.edu
Sun Sep 9 17:24:20 PDT 2007
I add atapicam_load="YES" into loader.conf file
dmesg is still acd0: DVDR <LITE-ON DVDRW LH-18A1P/GL0C> at ata0-slave UDMA66
However from the command line
[root@ ~]# growisofs -dvd-compat -Z
/dev/cd0=/usr/home/Pedja/TeXLive/texlive2007-live-20070212.iso
Executing 'builtin_dd
if=/usr/home/Pedja/TeXLive/texlive2007-live-20070212.iso of=/dev/pass0
obs=32k seek=0'
Apparently success. Thank you. I read the Handbook so many times but I
obviously didn't read my kernel properly.
Thanks again!
Martin Tournoij wrote:
> On Sun 09 Sep 2007 16:09, Predrag Punosevac wrote:
>
>> I have a very strange problem with my DVD-RW drive. Namely the drive is for some reason recognized as read only
>>
>> acd0: DVDR <LITE-ON DVDRW LH-18A1P/GL0C> at ata0-slave UDMA66
>>
>> I am running FreeBSD 6.2 stable with generic kernel (I didn't compile nor install my own kernel)
>> so the following lines are present in my GENERIC
>>
>> [pedja@ /usr/src/sys/i386/conf]$ more GENERIC
>>
>> # ATA and ATAPI devices
>> device ata
>> device atadisk # ATA disk drives
>> device ataraid # ATA RAID drives
>> device atapicd # ATAPI CDROM drives
>> device atapifd # ATAPI floppy drives
>> device atapist # ATAPI tape drives
>> options ATA_STATIC_ID # Static device numbering
>> # SCSI peripherals
>> device scbus # SCSI bus (required for SCSI)
>> device ch # SCSI media changers
>> device da # Direct Access (disks)
>> device sa # Sequential Access (tape etc)
>> device cd # CD
>> device pass # Passthrough device (direct SCSI access)
>> device ses # SCSI Environmental Services (and SAF-TE)
>>
>>
>> I also edited my load.conf file with
>>
>> hw.ata.ata_dma="1"
>> hw.ata.atapi_dma="1"
>>
>>
>> I altered the permissions devfs.conf and fstab file so that I can read and write but that is not even important since I can not
>> write anything even from the command line
>>
>> I also get
>>
>> [pedja@ /usr/home/Pedja]$ dvd+rw-mediainfo /dev/acd0
>> /dev/acd0: unable to open: Inappropriate ioctl for device
>> [pedja@ /usr/home/Pedja]$ dvd+rw-mediainfo /dev/cd0
>> /dev/cd0: unable to open: Inappropriate ioctl for device
>>
>> Whole behavior is even more strange since the optical drive was working flawlessly on PC-BSD 1.3 which is FreeBSD 6.1 stable.
>>
>> Any suggestions.
>>
>> Thank you so much
>>
> You need to use ATAPICAM if you want to use ATA cd-writers, see the
> FreeBSD handbook:
> http://www.freebsd.org/doc/en_US.ISO8859-1/books/handbook/creating-cds.html#ATAPICAM
>
> A small addition to the handbook:
> You don't need to reboot your machine, the command:
> $ kldload atapicam
> Will load the module at runtime.
>
> Use /dev/cd0 instead of /dev/acd0 for all writing purposes.
>
> Maybe PCBSD does this automagiclly? Can't comment on that since I
> don't use PCBSD.
>
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