How to Solve Grub Menu Not Showing on Boot

In my duel boot system (Ubuntu & Windows 10), during the Ubuntu upgrade process, i lost the grub boot menu options. It directly boots to Ubuntu and these is no option to select my Windows OS during boot. After a lot of research and help i found a solution in my case.

Fix Grub Boot Menu Not Showing & No Windows Boot Option in Dual Boot

Open the terminal application (ctrl+alt+t) in your Ubuntu (or any other Linux system) and run below command.

sudo nano /etc/default/grub

open grub file in nano

 

Run your Ubuntu password if needed.

It will open the grub file in the nano command-line editor.

grub nano edit

Now using the arrow keys location the below line.

GRUB_TIMEOUT_STYLE="hidden"

And change this to

GRUB_TIMEOUT_STYLE="menu"

And also add below line . (Or find below line and uncomment it)

GRUB_DISABLE_OS_PROBER="false"

edit grub file in nano

Save the file. To save the file press Ctrl + X on your keyboard. This will attempt to exit nano. Now enter Y and hit the enter key. Now you will be asked to give a name to the file. Simply hit the Enter key on your keyboard.

Also Read:  How to Schedule a Task on Ubuntu Using AT Command Tool

How to Save File Using Nano Editor

Now in the terminal app run below command.

sudo update-grub

update grub entries

Now restart your system. Now you will get Grub Boot menu options.

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