To make it the default, edit /etc/default/grub and add the options to GRUB_CMDLINE_LINUX_DEFAULT= and GRUB_CMDLINE_LINUX= then run update-grub.
To make it the default, edit /etc/default/grub and add the options to GRUB_CMDLINE_ LINUX_DEFAULT= and GRUB_CMDLINE_LINUX= then run update-grub.