To make kernel parameters permanent you have to edit /etc/default/grub and recreate the grub-menu afterwards.
You should first test kernel params by editing them on boot using the grub-menu (see below).
Create a backup of the /etc/default/grub before editing it.
If using commands with sudo, you will get ask for your users password. (with older mint-versions, your will get no feedback shown while entering it; newer mint-versions will show some asterisks * while entering it)
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):
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.
|nomodeset||turn off graphics-detection on boot = avoid black-screen|
|acpi=off||turn off power-management = is faulty on some machines|
To re-create the actual grub-menu run:
, 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:~$
If you reboot now, your modified kernel params will be used as default.
In case you are facing unexpected issue during boot: you are able to edit (or delete) kernel-params from the grub-menu as usual: You have just replaced the default quiet splash with your modified version of it ...
|IRC:nano.htm||a simple text-mode editor|
|IRC:grub-saved.htm||auto-save last manual kernel- or os-selection as new default|
|IRC:bootparam.htm||edit kernel params on boot, common use-cases|