To create an ISO file from a physical DVD/CD/Floppy/USB/Anything. Use the command ‘dd’ this creates a bit for bit copy of the original file/partition/device. dd takes two parameters these are if - input file and of - output file. In this case the input file will be the CD and the output file will be the ISO. dd if=/dev/sr0 of=/home/osaka/cd.iso My optical drive is located at /dev/sr0. I found this out my automaticly mounting the disk and using mount to view all mounted devices.