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=115200"
GRUB_CMDLINE_LINUX="quiet rhgb console=ttyS0"
GRUB_DISABLE_RECOVERY="true"
GRUB_THEME="/boot/grub/themes/system/theme.txt"
GRUB_GFXMODE="auto"
GRUB_GFXPAYLOAD_LINUX="keep"