I installed Ubuntu Server 14 on my Mac Pro and now after a successful installation, when I tried to reboot it, the computer chimes like a Mac always does, but does not load any further. Normally I would see a grey screen then code as ubuntu loads and finally I would be prompted with a password.
It does non of that, any idea why this would be, I had Ubuntu 12 running great however quite a few corrupt files caused the upgrade to 14 to fail, and I erased the harddrive back to empty, and did a fresh install of 14. Everything seemed to go just fine until now.
What can or should I do to try and fix this.
EDIT: I now see the grey screen but then nothing happens after that