How to show GRUB after install Ubuntu over Windows 8?

Question

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.

Solution

Install Boot-Repair on ubuntu by following steps

Open the terminal and run the following commands

sudo add-apt-repository ppa:yannubuntu/boot-repair
sudo apt-get update
sudo apt-get install boot-repair

After completing the installation you can launch it from System->Administration->Boot-Repair menu if you use Gnome, or search "boot-repair" in the dash if you use Unity. Then follow the following screenshots:

Method 1

• Click on the advanced options

• Tick the options shown below

• Change the tab to Grub Location Tab and Tick The options Shown in the figure

Press Apply and Reboot the system

Method 2

• Select the recommended Boot repair options as shown in the first screenshot

Comments

[Rinzwind]

... and uefi is turned off?

[BigSack]

Press f12 and select ubuntu.

[LovinBuntu]

In the log, we can see that efibootmgr has been used successfully by grub-efi/Boot-Repair, so it is likely to be a firmware that violates the UEFI specs.