Procedure for Writing Data to DVD Disks
Instructions for 4 Meter, 2.1 Meter, WIYN and 0.9 Meter
NOTE: ONLY DVD-R DISKS CAN BE USED!
( 1 ) Create an ISO image
The standard size quoted for DVD is 4.7GB, but the actual storage is more
( 2 ) Burn the DVD
(a) Insert the blank DVD into the drive
(b) Burn the ISO file to the DVD (example for tan at the 4-meter):
% dvdrecord -dao -dev=2,1,0 file-name.iso
file-name.iso is the name of the iso file.
The "dev" values for each of the computers are:
To find the dev values:
For nutmeg and emerald: 2,0,0
For tan: 2,1,0
For sapphire: 1,0,0
For sand: 1,1,0
For mrbill: 1,0,0
It takes about 20 minutes to burn a full disk.
( 3 ) Verify the burn (optional, but recommended)
(a) mount the disk (enabled in:/etc/fstab for user mounts)
You may need to eject the disk before mounting.
(b) list the files, read some, copy them all to /dev/null or anything
else to verify the saved files. You may also want to load the disk in a
laptop or other machine to verify.
(c) unmount the disk
(d) Since the disks are so cheap, it probably makes sense to make a
second copy by repeating step 2.
(4) Delete the ISO file after the copies are burned and verified.
The values for the "dev" option of dvdrecord are found with the
"dvdrecord -scanbus" command.
The output of that command for tan is:
[tan]$ dvdrecord -scanbus
The 3 comma separated values at the beginning of the line are used in
the "dev" option. These values stay constant unless the IDE or SCSI
chains in the system are re-arranged.
2,0,0 200) 'ASUS ' 'CRW-4012A ' '1.0 ' Removable CD-ROM
2,1,0 201) 'PIONEER ' 'DVD-RW DVR-106D' '1.06' Removable CD-ROM