How to Create a CD-ROM ISO Image with Linux

To create an ISO image of a DVD or CD-ROM disk, you can do it easily with any UNIX or Linux systems.

All you need is a Unix like system (real or virtual) that can read the digital disk.

The command dd(1) - convert and copy a file, is a very old Unix command than can be used to create an ISO image of any disks.

1. Insert the CD or DVD medium into the machine.
2. Unmount the CD-ROM device if mounted automatically:
   # umount /dev/cdrom
3. Create a CD/DVD-ROM ISO image with the dd command:
   # dd if=/dev/cdrom of=/tmp/myimage.iso