So, I already have a 64-bit 16.04 LTS installed on a USB stick. That already works and boots successfully on any PC or PC laptop.
What I'm interested in is to know if and how, you can make the SAME usb installation to also boot on a Mac (Macbook Pro 2015, Intel i5 CPU). When I try to boot with it (by holding the Option down while booting the Mac), the Mac doesn't recognize it as bootable, it only gives me the option to boot the MacOS X drive.
So, I wonder if there are any packages that I can install, that will make an existing installation to ALSO boot on the Mac, in addition to the PC(s). Thx!
EDIT: I should add, all of my PCs are non-EFI (they're plain BIOS). I know that the Macbook is EFI. Is there a way to have the same bootable USB stick boot on both on EFI and BIOS PCs/Macs?