4 . /lib/upgrade/common.sh
6 if [ ! -f /boot/grub/upgraded ] && export_bootdevice && export_partdevice diskdev 0; then
7 part_magic_efi "/dev/$diskdev" && return 0
8 echo "(hd0) /dev/$diskdev" > /tmp/device.map
9 /usr/sbin/grub-bios-setup \
10 -m "/tmp/device.map" \
14 && touch /boot/grub/upgraded
18 [ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main upgrade_bootloader