I installed Windows 8 and after that I installed Ubuntu. This are my partition now:
- 70Gb --> Windows 8
- 50Gb --> Ubuntu 12.10
- 100Mb --> UEFI
- 300Mb --> Recovery
I installed the GRUB on
/dev/sda. Then, after GRUB not showing up and booting directly into Windows 8, I turned the laptop off and booted again into Ubuntu LiveCD and ran the Boot-repair utility, it give me this information but it didn't solved the problem.
My Laptop still boots directly into Windows 8, without GRUB or Ubuntu even showing up.