Today I decided to erase OS X and install Ubuntu - unfortunately something went wrong and now I am asking this question on live mode on Ubuntu.
So basically all I did was create a bootable USB stick from OS X, restarted, then held down ⌥ alt/option, choosed the stick, installed Ubuntu and erased OS X.
All was good, and after installion it said "successful installation" and restarted the computer. I did that, and a blinking question mark appeared on the screen. My MBP could not find any bootable partition.
Any idea what can I do to get Ubuntu up and running?
By the way, I want to point out there is no OS X partition left on my drive - I didn't use any kind of program for dual boot, since I wanted to install OS X on another physical drive.