GRUB_TIMEOUT=5
GRUB_DISTRIBUTOR="$(sed 's, release .*$,,g' /etc/system-release)"
GRUB_DEFAULT=saved
# GRUB_TERMINAL="serial console"
# GRUB_SERIAL_COMMAND="serial --unit=0 --speed=9600"
GRUB_CMDLINE_LINUX="quiet rhgb"
GRUB_DISABLE_RECOVERY="true"
GRUB_THEME=/boot/grub2/themes/system/theme.txt