CSTR guide to burning CDs and DVDs under DICE
There is a CD burner installed on Liberator and a DVD burner (which will also write CD media) installed on Jenna. Blank CDs and DVDs can be obtained from Rob. Burning a CD is slightly simpler and is covered first.
Burning a CD
Burning a data CD is a two stage process.
- Creating an image of the CD.
- Writing the image to the blank CD.
Creating the imageCreating the image involves writing a single file which contains an image of the filesystem that you want to appear on the CD. This can be thought of as similar to a tar archive file. The mkisofs utility creates an ISO9660 image file that can be written to a disk. The general form of the command is:
mkisofs -o image.iso -J -R -A -V -v path/to/filesThis creates an image file called image.iso of everything under path/to/files. It is suggested that you create this file on the machine with the CD writer under /disk/scratch.
It is worth noting that a CD filesystem is much simpler than a standard UNIX filesystem, It does not do symbolic links or weird filenames. If you have weird long filenames, you may want to include the flag -U. This creates an image which violates the ISO9660 standard, but your filenames will be preserved. Or you may want to create a tarfile and write that to the disk to preserve a full file structure.
Writing the image to CD
This can be done using cdrecord.
cdrecord -v speed=8 dev=0,0,0 image.isoIf you want a multisession disk add the flag -multi.
To have write access to the CD device you must be logged on at the console of the machine which it is connected to, you cannot write to it is you are logged in remotely.
Graphical applicationsThere are a few graphical applications for writing CDs. Instructions can be found here. None of these applications have been tested at CSTR, so use them at your own risk.
To copy an existing CD, you can create the iso image using dd:
dd if=/dev/cdrom of=image.iso
To make an audio CD from a bunch of wav files:
cdrecord -v dev=0,0,0 speed=1 -dao -pad -useinfo *.wav
To pipeline as a single command try:
mkisofs -J -R -A -V -v path/to/files | cdrecord -v fs=6m speed=8 dev=0,0,0 -
Burning a DVD
The process to burn a DVD is essentially the same as burning a CD except the DVD writting process is not supported by the standard version of cdrecord, so a specialist version is provided on jenna in /disk/scratch/dvd/tools.
Create the iso image as for a CD (this can be stored in /disk/scratch/dvd/images) then burn the image with the following command:
/disk/scratch/dvd/tools/cdrecord-prodvd-2.01b31-i686-pc-linux-gnu -dao -v dev=0,0,0 image.iso