How do I set up Ubuntu to boot by default in dual boot?

Question

I dual booted my laptop by installing Ubuntu 14.04 along with Windows 8.1. Now when I power on my laptop by default it boots with Windows. How can I set Ubuntu to boot by default?

Answer 1

You need to edit the file /etc/default/grub.

gksu gedit /etc/default/grub

The default entry is determined by the GRUB_DEFAULT= setting in this file. The first menuentry has a value of 0. If Ubuntu is the second entry in the boot screen then set GRUB_DEFAULT=1.

Afterwards you need to run this command:

sudo update-grub

For further information see this article on help.ubuntu.com

Answer 2

make sure that fast start mode in Windows is disabled. It happened with me. Disable it and shutdown and start your machine again.

google about disabling this mode for more info