GRUB is not displaying on boot, no GRUB_HIDDEN_TIMEOUT

Question

I have GRUB v 2.8.9 (Ubuntu 18.10). I want to install Remix OS in dual boot. I created an entry for Remix OS with GRUB Customizer. But when I'm trying to boot, I don't have any GRUB menu appearing.

So, I tried to fix that by editing /etc/default/grub, but there's no line GRUB_HIDDEN_TIMEOUT. I do have GRUB_TIMEOUT_STYLE="hidden" and GRUB_TIMEOUT="0".

How can I show my GRUB on boot?

Possible duplicate of How to get to the GRUB menu at boot-time? — Mohammad C, Nov 19 '18 at 22:35
@MohammadC i do not have line: "GRUB_HIDDEN_TIMEOUT", to do this — Dmytro Soltusyuk, Nov 21 '18 at 03:50
@MohammadC i must comment line "GRUB_HIDDEN_TIMEOUT" to solve this problem, but if i add this line in code, and comment it, then, either first variant nor second will not work, because both in 2 variants this line of code will not be compiling — Dmytro Soltusyuk, Nov 21 '18 at 19:27
I just wanna to make the grub to open permanently, when i am booting my pc. — Dmytro Soltusyuk, Nov 21 '18 at 19:29
Okay. I shall check my grub and post it. My grub works. Comes up everytime has a timeout of a few seconds. My grub has a theme so some of it will be irrelevant. Mine also selects the last OS used. — Mohammad C, Nov 21 '18 at 19:32
Possible duplicate of Dual-boot boot menu does not show up after installing Ubuntu 15.10 alongside Windows 10 — karel, Nov 22 '18 at 16:15
Not really a dupe of anything, definitely not the second one - no Windows installed — Zanna, Nov 24 '18 at 05:12

score 4 · Accepted Answer · edited Nov 24 '18 at 05:08

Below are my GRUB settings, which do what you want. Make a backup of your /etc/default/grub file and try mine to see if does what you want.

Don't forget to run sudo update-grub any time you edit the file...

I noticed my GRUB_TIMEOUT line doesn't have quotes and

0 means do not time out so skips menu,
postive number means skip menu after the given number of secs and
-1 means don't skip.

Also try removing the quotes from GRUB_TIMEOUT_STYLE. Also try setting that to menu, not countdown or hidden.

Check out the documentation to see what each setting does.

I think these are the main settings you need.

GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=-1

My current /etc/default/grub

GRUB_DEFAULT=saved
GRUB_SAVEDEFAULT=true
GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""
GRUB_THEME=/boot/grub/themes/Aurora-Penguinis-GRUB2/theme.txt

Thanks a lot, i'll try it tomorrow, i think it should work. – Dmytro Soltusyuk Nov 22 '18 at 20:07 — Dmytro Soltusyuk, Nov 22 '18 at 20:07

GRUB is not displaying on boot, no GRUB_HIDDEN_TIMEOUT

1 Answers1