IRC:grubedit [2020-01-21]

Copy the following lines to a terminal:

mkdir ~/backups
cp --parents --backup=numbered /etc/default/grub  ~/backups

This will create a folder backups at your users home-directory and place a copy of the original file, including it's parent folders structure there.

If the cp command is run repeatedly, older backups will be kept, but renamed to grub~1~, grub~2~ etc - the last recent version will keep the original name.

Copy the following line to a terminal and enter your password, when being asked (2 times on the first run):

xed admin:///etc/default/grub

Note: If you cant used xed for some reason or are limited to a text-console, you can use nano - see IRC:nano.htm - instead to apply the required changes:

Go to the line showing: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

# ... skipped text before
GRUB_DISTRIBUTOR=`lsb_release -i -s 2> /dev/null || echo Debian`
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
GRUB_CMDLINE_LINUX=""

# skipped text after ...

Add extra parameters inside the quotes to quiet splash, delimiting it with an extra space-character from the existing ones.

You could optionally replace the default quiet splash with nosplash too, which will suppress the mint-logo, but show text-output during boot instead (many people will prefer to have the logo).

Save the modified file and close the editor.

Common edits (only use them if you need them)

To re-create the actual grub-menu run:

sudo update-grub

, which should list available kernels and installed OS - similar to this:

oadm@mint-19-3-cinnamon-64bit:~$ sudo update-grub
[sudo] password for oadm:         
Sourcing file `/etc/default/grub'
Sourcing file `/etc/default/grub.d/50_linuxmint.cfg'
Sourcing file `/etc/default/grub.d/60_mint-theme.cfg'
Generating grub configuration file ...
Found theme: /boot/grub/themes/linuxmint/theme.txt
Found linux image: /boot/vmlinuz-5.3.0-26-generic
Found initrd image: /boot/initrd.img-5.3.0-26-generic
Found linux image: /boot/vmlinuz-5.0.0-37-generic
Found initrd image: /boot/initrd.img-5.0.0-37-generic
Found linux image: /boot/vmlinuz-5.0.0-32-generic
Found initrd image: /boot/initrd.img-5.0.0-32-generic
Found memtest86+ image: /boot/memtest86+.elf
Found memtest86+ image: /boot/memtest86+.bin
done
oadm@mint-19-3-cinnamon-64bit:~$

If update-grub does show any errors: recheck your edits. It might help to compare your edits against the initial created backup-file using:

diff /etc/default/grub  ~/backups/etc/default/grub

oadm@mint-19-3-cinnamon-64bit:~$ diff /etc/default/grub  ~/backups/etc/default/grub 
10c10
< GRUB_CMDLINE_LINUX_DEFAULT="quiet splash nomodeset"
---
> GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"
oadm@mint-19-3-cinnamon-64bit:~$