Re: [gentoo-user] grub2: hidden menu unless shift pressed?

[Daniel Frey <djqfrey@gmail.com>]

On 02/17/18 12:36, Grant Edwards wrote:
> I'm trying to figure out how to configure grub 2.02 so that no menu is
> displayed and it will boot immediately to the default unless shift is
> held down during boot -- in which case it displays the menu and waits
> indefinitely for a choice to be made.
> 
> This is a bare-bones grub2 installation without any of the
> auto-magical, config generator scripts.  All I have is grub.cfg and an
> editor.
> 
> I've found many web pages that say all you have to to is edit
> /etc/default/grub and set GRUB_TIMEOUT=0 and GRUB_HIDDEN_TIMEOUT=0 and
> Bob's your uncle.  Of course that file gets mashed about by dozens of
> shell scripts comprising thousands of lines of code to product the
> real grub.cfg containing hundreds of lines of code.
> 
> [Oh God, how I hate grub2.]
> 
> AFAICT, you end up with
> 
> set timeout=0
> set timeout_style=hidden 
> 
> But, that doesn't seem to work. Holding down the shift key during boot
> doesn't cause the menu to be displayed, and it always boots directly
> to the default no matter what you do.
> 
> Any grub2 experts care to lend a clue?
> 

It's been a while since I've done this, but I thought the hotkey was ESC
not shift?

All I had to do was use:

GRUB_TIMEOUT=0
GRUB_HIDDEN_TIMEOUT=5

Grub will wait for the escape key to be pressed for 5 seconds, if no
keypress, it would boot.

Dan