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I want to create a bootable USB key drive in order to be able to run/install an Ubuntu ISO image with it.

How can I do that using Ubuntu (command line) ?

1 Answers1

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The simplest way is to use GNU dd:

sudo dd bs=4M if=/path/to/ubuntu.iso of=/dev/sd<X> && sync

where <X> is your drive letter.

enedil
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  • Could you explain me the meaning of the option "bs=4M", please ? (your command is tested by my friend and it works) –  Apr 22 '14 at 09:58
  • From man dd: bs=BYTES read and write BYTES bytes at a time So every single quantum of time, 4 megabytes are written to pendrive. – enedil Apr 22 '14 at 10:18