Ubuntu – How to select option in “Configuration grub-pc” menu


I would like to select /dev/sda in the "Configuration grub-pc" menu that popped up in my terminal while upgrading my distro version. However, I have no idea how to select it! Every key I press either does nothing, or takes me to a second menu that says "You chose not to install GRUB to any devices." How do I select it? Configuration grub-pc menu

When I select <Ok> without selecting an option: enter image description here

Best Answer

Use [tab] to switch between options, use [spacebar] to select.