To configure the grub2/burg settings in ubuntu in easy way you need to install Grub Customizer. The main feature is the boot entry list configuration .
1.Go to Applications->Accessories->Terminal and Type the below commands and press enter.
sudo add-apt-repository ppa:danielrichter2007/grub-customizer sudo apt-get update sudo apt-get install grub-customizer
2.Then go to Applications -> System Toiols -> Grub Customize to configure the grub2/burg settings in ubuntu