How to directly reboot from Linux to Windows

GNU/Linux is (for me) the best operating system for programming, but when it comes to gaming Windows still has the better…
So I’ve always kept a dual-boot on my main PC because I like to play after a day of studying. I’ve often had to reboot my PC and get stuck at the desk breathlessly waiting for the GRUB screen to come up so that I don’t end up back on GNU/Linux and have to reboot a second time, hoping that will be the last.

That’s why I’ve been looking around for a way to solve this “problem”…

I found the solution! A simple ALIAS for bash, zsh or any other shell that supports them and here’s how I did it…

1 — The new ALIAS

• Open ~/.bashrc or ~/.zshrc
• Add alias wreboot="sudo grub-reboot X && reboot" replacing the X with the position of the Windows entry in the GRUB list (starting from zero)
• Save file

2 — Update the GRUB

• Open /etc/default/grub
• Set the variable GRUB_DEFAULT as saved .
• Save file
• Execute sudo update-grub (on Ubuntu)
  Or sudo grub-mkconfig -o /boot/grub/grub.cfg (on ArchLinux)

3 — Get rid of SUDO password

Replacing *USER* with your username and *PATH* with the path getted using which grub-reboot(ex: /usr/bin/grub-reboot):

• Open /etc/sudoers.d/*USER* with sudoedit
• Add *USER* ALL=(ALL) ALL
  And *USER* ALL=(root) NOPASSWD:*PATH*
• Save file

That’s all folks!

Now when you run wreboot in your terminal the PC will automatically reboot into Windows.