timeout=1 menuentry 'SerenityOS (normal)' { root=hd0,2 multiboot /boot/Kernel root=/dev/hda2 } menuentry 'SerenityOS (No ACPI)' { root=hd0,2 multiboot /boot/Kernel root=/dev/hda2 acpi=off } menuentry 'SerenityOS (with serial debug)' { root=hd0,2 multiboot /boot/Kernel serial_debug root=/dev/hda2 }