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"