Change default grub startup in CentOS 7

This post describes how to change the default startup choice while booting up CentOS 7.

Edit the file /etc/default/grub

Change the line
GRUB_DEFAULT="Windows 7 (loader) (on /dev/sda1)"

The value to add is determined by looking at the menuentry lines in /boot/grub2/grub.cfg
Choose the menuentry that you would like to be default.

To make this change active run the command
# grub2-mkconfig -o /boot/grub2/grub.cfg

You will see this change the next time you reboot.


  1. Stefan 22. June 2015 Reply
  2. Janno 23. June 2015 Reply
  3. Utkarsh Dharmadhikari 22. October 2015 Reply
  4. Andy Turfer 17. January 2016 Reply

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