[Re: Unable to write to CD-R]

Norm Vilmer Sat, 04 Sep 2004 08:10:59 -0700

-------- Original Message --------
Subject: Unable to write to CD-R
Date: Fri, 03 Sep 2004 15:56:45 -0500
From: Norm Vilmer <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]

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". One thing that bugs me is that dmesg reports my drive as a DVD-R.

I am not sure if this is the problem or how to addressing correcting it. Note: the BIOS reports the drive to be TOSHIBA DVD-ROM SD-R6112 1031, not a DVD-RW.

Can anyone give me some direction as to what I should try next, or
better yet, how I can get 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

- 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

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

Andrew L. Gould wrote:

Were you logged in as root?

Andrew Gould

Norm Vilmer wrote:

Sorry about the last response, I think I have my mail client setup better for text and continuing the message at the botton rather than the top.

Yes. I was logged in as root. I also played with the permissions
in /dev giving the u=rw,o=rw,u=rw, but it did not do anything so I put
the permissions back.

Is it possible the OS thinks the device is a read-only device? How Do I go about debugging this problem, i.e., can I find out where the problem is in the code? Can I get a more verbosity show why the operation is not permitted?

Norm Vilmer


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[Re: Unable to write to CD-R]

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