The last line tells the device name /dev/sr0 and mount point /media/handbook/CD-Romįilesystem Size Used Avail Use% Mounted on Insert your live CD or DVD into computer, then you can check the device name by running below command: df -lh As a result, dd can be used for tasks such as backing up the boot sector of a hard drive, and obtaining fixed amount of random data. On Unix, device drivers for hardware (such as hard disks) and special device files (such as /dev/zero and /dev/random) appear in the file system just like normal files dd can also read from (and in some cases write to) these files. This simple and brief tutorial will show you how to backup live CD or DVD to iso image on Ubuntu Linux using dd command.ĭd is a command on Unix and Unix-like operating systems whose primary purpose is to convert and copy a file.
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