Unable to get grub menu to show
Hi!:
Recently upgraded from Ubuntu 18.04 to 20.04. Everything has been working OK except that I'm not able to make the grub menu to appear. I've tried hitting ESC, SHIFT keys when booting without success. Is there now a new way in Ubuntu 20.04 to make the grub menu to show? Following, the information about my system: Code:
williepabon@williepabon-Macmini:~$ uname -a |
So computer starts but doesn't show the main grub screen to select likely Ubuntu and/or rescue mode? Instead just boots straight to your operating system?
From a terminal you could try: Code:
sudo update-grub Otherwise checking your /etc directories for all the proper grub settings? |
post the contents of /etc/default/grub
|
colorpurple21859:
Thanks for answering. Following, the information requested: Code:
# If you change this file, run 'update-grub' afterwards to update |
What happened when you ran update-grub?
Add: I don't have a box to play with, for testing but I know your settings like GRUB_TIMEOUT=0 can be set in seconds to say 15, (e.g.:) Code:
sudo vi /etc/default/grub Example https://ostechnix.com/configure-grub...-ubuntu-16-04/ |
it is much easier to use nano instead of vi to edit /etc/default/grub
Code:
sudo nano /etc/default/grub |
set
Code:
GRUB_TIMEOUT= Code:
sudo update-grub |
colorpurple21859:
Quote:
|
My grub default config only shows quiet not quiet splash
|
Add: but, also didn't dive into that link I gave or
Code:
man grub |
change this
Code:
GRUB_DEFAULT=0 Code:
GRUB_DEFAULT=0 Code:
#GRUB_GFXMODE=640x480 Code:
GRUB_GFXMODE=1024x768 Code:
sudo update-grub |
F9 did it for me
after install a few months ago(20.04) i had a similar issue, Ubuntu on the same drive as Windows,i hit F9 repeatedly at startup, and bingo ,i had the choice to boot to sata-1, grub appeared and voilą, i am not sure if this is related to your problem, i am not an expert, but if it could help.
|
Quote:
I have Windows and Linux on separate HDD. To install Linux, I disconnect the Windows HDD and plug in only the Linux HDD and I install Linux onto it. Once finished, I shutdown, I plug both HDDs. I just don't want Linux touching the Windows HDD MBR. ~~~~vmelkon |
Peripherals
I've often noticed in these threads concerning such issues, that hardware is nearly always overlooked. Just a suggestion: unplug all peripherals, including keyboard and mouse, unplug the computer, hold the power button down (while unplugged) for about 10 seconds, plug everything back in (power chord lastly), restart your p.c. and see if you get your grub menu back.
|
All times are GMT -5. The time now is 08:16 PM. |