If you are having difficulties burning and booting an iso or img file from a usb drive, try this method.
But first I recommend that you download your iso or img via torrent, to prevent corruption if possible.
Open a terminal and type:
Replace USERNAME with your username, and Downloads with the folder in which your iso is located.
Then, with the usb drive inserted:
To detirmine when your USB drive is mounted (for me it was SDB)
DO NOT, I repeat DO NOT, enter something like sdb1. Because it will not work, you have to use the root of the drive. Which would be sdb instead.
sudo dd if=NAME OF ISO
of=/dev/sd[REPLACE WITH THE RESULT OF PREVIOS STEP]
This guide comes straight for mips, I just thought I'd post it for everyone to see, I take no credit.