I tried installing Ubuntu 12.04 from the live CD. The install went fine but i had the next error while booting :
Grub stage 1.5 error 2.
So I used boot-repair as explained here. Still not working, i got this while booting :
GNU GRUB version 1.99-21ubuntu3
Minimal bash-like line editing is supported.
etc.. Nothing more.
Here the report from boot-repair.
Could anyone help me ?