Hi today I decides to upgrade from 12.04 to 14.04. Everything worked in the last moment, a message poped up saying that my bootloader install had failed and would not let me install it on a different drive so I continued anyway and on boot I get a black screen.
PS: I erased everything and installed ubuntu 14.04 five times.
There where no external drives but 1 internal hhd and an internal ssd