I installed Ubuntu on win 8 machine and it was dual boot option and now I donot see the dual boot screen to select which OS to boot and only windows is booting up automatically.

How do I fix this?


Try boot-repair, by booting into Ubuntu from Live-USB or Live-DVD.

Install 'boot repair' with Terminal (Ctrl+Alt+T) by typing the following commands:

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

Run/Open 'boot-repair':

sudo boot-repair

Click on 'Recommended repair' and write on a piece of paper the new URL that will appear.

Finally, reboot your PC!


Boot into your ubuntu system then locate and check:


See if it contains the both operating systems (Ubuntu and Windows).

Run from the terminal:

sudo update-grub

Reboot the system and see if you can boot into your OS.

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