UNetbootin is a live usb creation tool that can be used to create a live linux usb flash drive from an ISO. UNetbootin was created by Geza Kovacs, released under GNU GPL v2. Many Linux distributions are supported out of the box with custom install options available for Linux distributions that are not. It is important to mention that live linux usb flash drives created with this tool. The resulting usb Linux install will function just as it does from a CD.
Distribution – Select your Linux Distro and version
Disk image – Select iso file type and iso file from HDD
Select pen drive/Flash Drive
Boot from USB