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I already know how to do it on Mac OS X (plenty of instructions online).

But is it possible to do it on Ubuntu? If yes, how?

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I think that your solution (Question and answer) already exist in this post. – Lucio Dec 5 '12 at 18:06
@Lucio Unfortunately, no. This post tells about .iso image files, but I have .dmg image file, which is different. – Jake Badlands Dec 5 '12 at 18:08
Oh, now I understand you. Your right, the Mac images are .dmg. I hope that my answer can be useful for you. If it does, just let me know. – Lucio Dec 6 '12 at 15:51

2 Answers 2

up vote 17 down vote accepted

As you want to create a LiveUSB you need a .ISO image to make it. The Mac image is a .dmg file, so you must to convert this file into .ISO, and then install it.

Install DMG2IMG

This software will convert the .dmg image into a .iso image.
Open a terminal and enter this command: sudo apt-get install dmg2img
Now you have the converter software.

Convert the Image

With dmg2img you will creat an .IMG file, and this file will have the same code that an .ISO file, so you will fix the extension.
In the terminal you have to enter the following commands:

dmg2img OriginalFile.dmg #Replace with your file name and it will create the IMG file

mv OriginalFile.img FinalFile.iso #NOTE that the extension of the first file is .IMG!

Make the LiveUSB with an ISO image

Now you already have the .ISO image, with which you will make the LiveUSB. Actually is an answer where this procedure is explained very well, so see that document.

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Thank you very much ;-) – Jake Badlands Dec 6 '12 at 17:28

why not just dd the .img file after conversion?

sudo dd if=/path/to/orig.img of=/dev/s**
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Since you asked, dd is a good program if a bit hard to understand for some, however dd has one major drawback compared to GUI USB creator applications . Sometimes when you dd an .img file onto a USB drive you can't reformat it if you want to reuse the USB drive. The GUI live USB programs don't have this problem. – karel May 1 at 15:37
@karel actually you could use a software like SDFormatter with FORMAT SIZE ADJUSTMENT = ON to restore the true capacity of USB drive (after dd'ing USB drive could appear as e.g. 50 MB instead of 4GB and standard built-in OS software sometimes can't restore it) – Jake Badlands Oct 13 at 9:57
@JakeBadlands I downloaded SDFormatter to try it, but ClamAV reported a malware threat on the file that I downloaded, so I'm sticking to my tried and true method which uses programs from the Ubuntu Software Center:… – karel Oct 13 at 10:16

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