Hi.
I've got a Dell Inspiron 15 3521-7147 with Windows 8.1 on a board. Also I've got an CD disc with my Elementary OS system.
I'd like to boot from this CD to do some things with it, but I don't know how, because of UEFI on my machine. I tried to follow this instruction, but I'm stuck on the step when we should choose "file system list": I don't have an option with "/CD" at the end, I see others, but not that one.
So how do I boot from an optical disc or a flash drive like I do in the usual BIOS?