GRUB not showing after installing Ubuntu 20.04

Question

I installed Ubuntu 20.04 yesterday, and after I shutdown my pc, I have found that GNU grub 2 menu is not showing at more, so there is completely no video signal until I booted into Ubuntu.

I've collected a lot of resources online and still not being able to enabling dual boot option.

Things I have tried:

Press and hold F11, ESC, Shift before on startup.
Using boot-repair to automatically repairs my grub.
Manually set my default GRUB to windows.
Set my default GRUB to windows in boot-repair software.
I am not sure if this piece of info is helpful, I've managed to change boot manager back to windows bootmgr, but even windows boot manager is not showing during boot, I think this might not be a problem related to ubuntu anymore. But I would still love to hear from people who have encountered same problems. Thanks!

None of these actually helped my to get the GRUB screen showing, so after I starts my pc, the black screen continues until I see Ubuntu.

Could anyone share some thoughts about the problem? What should I do to fix it.

Does this answer your question? Unable to boot into Windows after installing Ubuntu, how to fix? — karel, Oct 25 '20 at 02:10
@karel, I have tried the top few most voted solutions, not having an effect for me... — shunfan2, Oct 25 '20 at 02:25
Yeah in case it is not clear, I've spent some time in the page you mentioned before I posted the question, but Rescatux is an option I have not tried. I will work on it now. — shunfan2, Oct 25 '20 at 03:15

score 0 · Answer 1 · answered Dec 14 '20 at 05:05

0

I experienced this personally with my laptop. It turned out my laptop didn't support graphical GRUB terminal. Simply set GRUB_TERMINAL=console in the grub file at /etc/default/grub and this should fix the problem.

answered Dec 14 '20 at 05:05

cryptic

13

GRUB not showing after installing Ubuntu 20.04

1 Answers1