Mac OS X USB

Create a Bootable USB on Mac OS X

• Automatic installer (recommended)
• Manual installation (advanced - via terminal)
• Additional Multi-Boot Support

Automatic installer (recommended)

There are not quite as many installers for Mac, but I like Etcher. Another solution that offers more legacy support is UNetbootin.

NOTE: USB should be formatted as FAT32 and should have a GUID Partition Table

Manual installation (advanced - via terminal)

Do not plug in your USB yet
Open up your terminal and type this:

diskutil list

Take note of which drives are present and insert your USB. Retype:

diskutil list

A new disk should appear. This is your USB, and will be called "/dev/disk" followed by a number. Usually it will be "/dev/disk2", but I will use "/dev/diskN" from now on.

Next we will unmount the drive:

diskutil unmountDisk /dev/diskN

And now to burn the ISO to the USB:

dd if=/path/to/medaid.iso of=/dev/rdiskN bs=1m

Finally we eject our drive:

diskutil eject /dev/diskN

Additional Multi-Boot Support

I find that OS X does not handle multiple operating systems very well, so I recommend using the rEFInd boot manager. The installation instructions are on the creator's website.