Create a live USB for Linux Derivation I want to create a live USB to run a Linux derivation and followed these guides: 

Make and create Live USB Linux for Mac? How?

Making a Bootable USB Stick on an Apple Mac OS X from an ISO

Everything just went fine following the tutorial, but when I restart my MacBook Pro I cannot choose the USB drive, it just doesn't show up.
I looked at the second guide and the actual process is much simpler than the method suggested there.

Do the following, it works.

Go to Disk Utility, click on your USB drive on the left pane and click on the Info button at the top. Make a note of the Disk Identifier (Disk0, Disk1 etc.). Then, unmount any mounted partitions on your USB drive, but don't eject the drive itself.

In Terminal type the following, without pressing Enter afterwards...

sudo dd bs=1m if=


Then, drag your .ISO file to the Terminal window so its path is entered quickly and easily.

Add the following line onto the end of the command line, altering the number  at the end if your USB stick's Disk Identifier is other than Disk1

of=/dev/rdisk1


You should end up with a command like this...

sudo dd bs=1m if=/Users/s.darkly/Desktop/Linux/crunchbang-11-20130506-amd64.iso of=/dev/rdisk1


Hit enter, put your password in and wait for the magic to happen. It will take a few minutes and there won't be a progress bar so be patient.