root@debian:~# cat /mnt/EFI/BOOT/grub.cfg
serial --unit=0 --speed=115200 --word=8 --parity=no --stop=1
default=boot
timeout=10
menuentry 'boot'{
linux /bzImage root=/dev/sda2 rootwait rootwait rootfstype=ext4 console=ttyPCH0,115200 console=tty0 vmalloc=256MB snd-hda-intel.enable_msi=0
}