Ubuntu – Decrease GRUB timeout

grub2

The GRUB timeout is 8 seconds. Can this be turned down to 2 or 3 seconds? What is the best way to do this?

Try

sudo nano /etc/default/grub

change the GRUB_TIMEOUT value to 2 or 3

save

sudo update-grub

Hold down the 'shift' key as the machine boots. The grub menu should show.

This thread grub-recordfail-broken-regarding-lvm tries to get to the bottom of the problem.

If you are looking for a quick fix, you can

sudo sh -c 'echo GRUB_RECORDFAIL_TIMEOUT=5 >> /etc/default/grub';
sudo update-grub;

thank @borislav for pointing out sudo grub-install; is not needed for configuring Grub menu timeout