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How to use Linux to create an ISO of a CD/DVD

Linux creating CD-ROM ISO image

key: use dd 
 
Do not mount CD.

If cd was mouted automatically unmout it with umount command

Create CD-ROM ISO image with dd command:
# dd if=/dev/cdrom of=/tmp/cdimg1.iso

Where,
  • if=/dev/cdrom: Read from /dev/cdrom (raw format)
  • of=/tmp/cdimg1.iso: write to FILE cdimg1.iso i.e. create an ISO image

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