Before you make any changes on your notebook i strongly recomend to create a backup image of its hard disc. THIS WILL DELETE DATA ON /dev/sdb – MAKE SURE YOU KNOW WHAT YOU ARE DOING!On a separate system already running Ubuntu 16.04 and powered on, plug in the USB flash drive. A better mechanism to skip running update-efi-nvram-boot-entry on Mac machine was implemented. usr/sbin/update-efi-nvram-boot-entry; W priority-extra-is-replaced-by-priority-optional; "  " How to delete OS from boot menu. Obtaining the installation file Before you begin the upgrade you will need to download the latest firmware file that you will be installing from Before you begin, print this document and make sure that you have the upgrade file.
Osx Aptio Fix2Another driver to Fixes memory map created by AMI Aptio EFI.
After installing fedora and Centos and other OS now I have them all showing in my Boot ...