GRUB_TIMEOUT=5 GRUB_DISTRIBUTOR=“$(sed 's, release .*$,,g' /etc/system-release)” GRUB_DEFAULT=saved GRUB_DISABLE_SUBMENU=true GRUB_TERMINAL_OUTPUT=“console” GRUB_CMDLINE_LINUX=“vconsole.keymap=us crashkernel=auto vconsole.font=latarcyrheb-sun16 rhgb quiet net.ifnames=0 biosdevname=0 console=ttys0,115200n8 console=tty0” #GRUB_CMDLINE_LINUX=“console=ttys0,115200n8 console=tty0” GRUB_DISABLE_RECOVERY=“true” GRUB_TERMINAL=“serial” GRUB_SERIAL_COMMAND=“serial –speed=115200 –unit=0 –word=8 –parity=no –stop=1”