/etc/default/grub

 sudo cat /etc/default/grub


# If you change this file, run 'update-grub' afterwards to update
# /boot/grub/grub.cfg.
# For full documentation of the options in this file, see:
#   info -f grub -n 'Simple configuration'

GRUB_DEFAULT=saved
GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(unset PRETTY_NAME; (. /etc/lsb-release; echo ${PRETTY_NAME:?}) 2>/dev/null || echo Debian)"
GRUB_CMDLINE_LINUX_DEFAULT="quiet splash resume=UUID=b8bfae89-2e14-4f42-a39a-630104132535 resume_offset=100638720"
GRUB_CMDLINE_LINUX=""

# Uncomment to enable BadRAM filtering, modify to suit your needs
# This works with Linux (no patch required) and with any kernel that obtains
# the memory map information from GRUB (GNU Mach, kernel of FreeBSD ...)
#GRUB_BADRAM="0x01234567,0xfefefefe,0x89abcdef,0xefefefef"

# Uncomment to disable graphical terminal (grub-pc only)
#GRUB_TERMINAL=console

# The resolution used on graphical terminal
# note that you can use only modes which your graphic card supports via VBE
# you can see them in real GRUB with the command `vbeinfo'
GRUB_GFXMODE=1024x768

# Uncomment if you don't want GRUB to pass "root=UUID=xxx" parameter to Linux
#GRUB_DISABLE_LINUX_UUID=true

# Uncomment to disable generation of recovery mode menu entries
GRUB_DISABLE_RECOVERY="true"

# Uncomment to get a beep at grub start
#GRUB_INIT_TUNE="480 440 1"

#run dpkg-reconfigure grub-pc to allow toggle of os-prober
#GRUB_DISABLE_OS_PROBER=false

if [ -e /etc/default/grub.mx-defaults ]; then
.  /etc/default/grub.mx-defaults
fi

GRUB_THEME="/boot/grub/themes/mx_linux/theme.txt"
GRUB_SAVEDEFAULT=true