AryaveerSR

Hide GRUB menu on boot by default.

How to hide the GRUB OS selection menu on every boot and boot into the default OS straight-away.

Disclaimer: I’m using a Fedora 43 install (KDE spin). Follow at your discretion

Steps

Open /etc/default/grub in your preferred editor and add/edit the following items:

GRUB_TIMEOUT=0

# Hide the message telling what OS is being booted.
GRUB_TIMEOUT_STYLE=hidden

Then update GRUB with the following command:

sudo grub2-mkconfig -o /boot/grub2/grub.cfg

Selecting a different OS on boot

To select another OS while booting, simply hold the Shift key and change the selection from the menu as you usually do.