1. Download the .iso file. This also can be an .img file or a .dmg file
2. Rename the .iso file to .dmg.
3. Right-click on the .dmg file and select Get Info. Write down the full path name as mentioned in the dialog box. We will need that for step 9.
4. Start a Terminal window. The Terminal application is located in the folder /Applications/Utilities/ of your Macintosh HD volume.
5. In the Terminal window, type: diskutil list and press the Enter key. Now a list of your storage devices is displayed in the Terminal window, underneath what you typed earlier.
6. Put the USB stick in the USB port of your Mac.
7. In the Terminal window, type again:
