How to Make an ISO Image Using dd

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How to Make an ISO Image Using dd

Postby admin » Fri Jan 27, 2012 4:56 pm

The basic syntax for dd is:

dd if=INPUT-FILE-NAME of=OUTPUT-FILE-NAME

To make an ISO from your CD/DVD, place the media in your drive but do not mount it. If it automounts, unmount it.

dd if=/dev/dvd of=dvd.iso # for dvd
dd if=/dev/cdrom of=cd.iso # for cdrom
dd if=/dev/scd0 of=cd.iso # if cdrom is scsi


To make an ISO from files on your hard drive, create a directory which holds the files you want. Then use the mkisofs command.

mkisofs -o /tmp/cd.iso /tmp/directory/


This results in a file called cd.iso in folder /tmp which contains all the files and directories in /tmp/directory/.
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