The current install instruction for creating a Funtoo LiveCD on USB creates a USB image that is not bootable on some systems.  Failed with Alienware Alpha (UEFI/2015) and Latitude 13 (BIOS/2010).

Solution is to make the Funtoo LiveCD ISO image a hybrid mode image as described here: https://www.funtoo.org/LiveUSB

Alternately the install document could could be updated to include the isohybrid command. 

  isohybrid -u funtoo-livecd-area31-5.1-beta.iso