Added support for serial consoles in grub2 menu

installer/resources/grub/grub.cfg

@@ -23,13 +23,13 @@ insmod part_msdos
 
 # Set up display
 set gfxmode=auto
-terminal_output gfxterm
+terminal_output gfxterm serial_com0
+terminal_input console serial_com0
 background_image /boot/grub/splash.png
 loadfont /boot/grub/unicode.pf2
 
 # Scan all disks except for current root
-for disk in (*)
-do
+for disk in (*); do
     if [ "$disk" != "(${root})" ]; then
         scan_disk $disk
     fi