How to show the grub menu on linux mint

If you want so choose a different kernel on linux mint startup or boot with kernel parameters, then you need to update your grub configuration to show the grub menu before auto starting the system. To do this we have to edit the /etc/default/grub file and comment two lines.

Open the configuration file:

# nano /etc/default/grub

Comment the GRUB_TIMEOUT_STYLE=hidden and GRUB_TIMEOUT=0 line and save the file.

We only need to add the # character before these lines:

GRUB_DEFAULT=0
#GRUB_TIMEOUT_STYLE=hidden
#GRUB_TIMEOUT=0

If you are using the nano text editor, then press control o to save and control x to close the file.

Apply the configuration changes:

# update-grub

Now you can reboot your linux mint to enter on grub menu. If you want to hidden the menu again, so uncomment these lines.