Without using any additional software then what’s already on your Mac, you can easily create a USB stick that boots to Clonezilla. Just follow the below instructions and you’ll be well on your way to cloning disks and partitions.
First you have to actually download the Clonezilla ISO. If you’ve already done this you can skip this step.
Next we need to convert the ISO image to a DMG
To do this you’ll need to open up Terminal which you can find in either Applications -> Utilities or by pressing Command + Space to launch spotlight and typing Terminal
In the Terminal window you’ll need to type the following: (assuming that the clonezilla image is in your downloads folder)
Next, issue the following command and make a note of the output.
In the output you’ll notice that there are several disks such as /dev/disk0, /dev/disk1, /dev/disk2, etc…
Plug in your USB stick and issue the command again
You should now see a new disk, for me this is /dev/disk5
We will need to unmount this disk so that we can perform the necessary operations on it.
With the disk unmounted, we can now write the contents of the DMG image that we created from the Clonezilla ISO
Once this finishes we’ll need to unmount the USB stick
You should now have a working Clonezilla USB stick, congratulations 🙂