I cannot boot Ubuntu 12.04 after from a copy of my VirtualBox file.
I am getting a "GNU GRUB version 1.99-12ubuntu5" screen with these options:
Ubuntu, with Linux 3.0.0-24-generic Ubuntu, with Linux 3.0.0-24-generic (recovery mode) Previous Linux versions Memory test (memtest 86+) Memory test [...]
Choosing option 1 or 2 leads me directly to a black screen.
Trying to fix this, I started with an Ubuntu Live Cd and run boot-repair.
Unfortunately, boot-repair failed with this link.
Now I am stuck.