Unable to write to CD-R

[Norm Vilmer]

Andrew L. Gould wrote:
> On Friday 03 September 2004 03:56 pm, Norm Vilmer wrote:
> 
>>I am having trouble burning an iso image to a CD-R using FreeBSD
>>4.10. I have tried using
>>burncd , cdrecord, and  growifofs, all appear to have basically the
>>same problem (see details below)
>>"Operation not permitted". The only thing bugs me is dmesg reports my
>>drive as a DVD-R.
>>I am not sure if this is the problem or how to addressing correcting
>>it if it is. Note: the BIOS
>>report the drive to be TOSHIBA DVD-ROM SD-R6112 1031.
>>
>>Can anyone give me some direction as to what I should try next, or
>>better, I can the burner working?
>>
>>Details:
>>
>>FYI: I read the CD-Writing Howto and several other articles and
>>followed the instructions therein to the best of my ability (you be
>>the judge). This included:
>>
>>- logging in as root;
>>- adding "device atapicam"  to the kernel configuration and
>>rebuilding the kernel;
>>- creating /etc/devfs.conf as follows:
>>
>>link    acd0    cdrom
>>link    acd0    dvd
>>perm    acd0    0660
>>perm    cd0     0660
>>perm    pass0   0660
>>perm    pass1   0660
>>perm    pass2   0660
>>perm    pass3   0660
>>perm    xpt0    0666
> 
> 
> Once atapicam is installed, the CDROM device should have changed 
> from /dev/acd0c to /dev/cd0c.  From my pc:
> 	ls -alh /dev/cd0c
> 	crw-r-----  2 root  operator   15,   2 May 27 12:17 /dev/cd0c
> 
> 
>>- installing cdrecord, dvd+rw-tools
>>- ensure that the drive can read CD's and DVDs
>>- running ./MAKEDEV pass10 in the /dev directory
>>
>>also added these
>>
>>hw.ata.ata_dma="1"
>>hw.ata.atapi_dma="1"
>>
>>to /boot/loader.conf
>>
>>mount -t cd9660 /dev/cd0 /cdrom		# works fine CD's and DVD's
>>
>>Here's some things I tried:
>>
>>burncd -f /dev/acd0c -s 12 data 5.2.1-RELEASE-i386-disc1.iso fixate
>>burncd: open(/dev/acd0c): Operation not permitted
> 
> 
> Once you have atapicam working, burncd should not work.  Also, as per 
> above, /dev/acd0c should no longer represent the CDROM.
> 
> 
>>cdrecord -scanbus
>>Cdrecord 2.00.3 (I386 .....
>>cdrecord: Operation not permitted. Error opening /dev/pass0 Cam error
>>'camreal_ opendevice: coundn't open passthr. Cannot open SCSI driver.
>>
>>growisofs -dvd-compat -speed=4 -Z
>>/dev/cd0c=5.2.1-RELEASE-i386-disc1.iso
>>
>>:-( unable to cam_open_pass("/dev/pass0", O_RDWR): Operation not
>>: permitted.
>>
>>dmesg |grep DVD
>>acd0: DVD-R <TOSHIBA DVD-ROM SD-R6112> at ata1-master UDMA33
>>cd0: <TOSHIBA DVD-ROM SD-R6112 1031> Removable CD-ROM SCSI-0 device
>>
>>atacontrol list
>>ATA channel 0:
>>	Master: ad0 <TOSHIBA MK8026GAX/PA001G> ATA/ATAPI rev 6
>>	Slave: 	no device present
>>ATA channel 1:
>>	Master: acd0 <TOSHIBA DVD-ROM SD-R6112/1031> ATA/ATAPI rev 5
>>	Slave: 	no device present
>>
>>camcontrol devlist
>><TOSHIBA DVD-ROM SD-R6112 1031>	at scbus1 target 0 lun 0 (pass0, cd0)
>>
>>Hardware:
>>
>>MB:       VIA EPIA-CL10000, 512MB RAM, Award BIOS 6.00pw
>>Burner:   Toshiba SD-R6112 DVD-RW
>>
> 
> 
> I think the fact that the DVD-ROM is in the camcontrol devlist indicates 
> that atapicam is working.  The question remains as to why 'cdrecord 
> -scanbus' didn't work.
> 
> 1. Are you sure the DVD-RW also burns CD's?
> 2. Do you know if anyone has gotten this Toshiba model to burn DVD-RW's 
> using FreeBSD?
> 
> Good luck,
> 
> Andrew Gould
> 
I reviewed the drives specs, and it does burn CD-R's and CD-RW's in 
addition to DVD's. I will do another post asking if anyone else has 
gotten this burner to work with FreeBSD.

Do you know if there is a way to bet a more verbose message (why the 
operation is not permitted) or to debug this problem (I am confortable 
working with C/C++ but have never looked any FreeBSD source)?