target/linux/x86/base-files/lib/preinit/81_upgrade_bootloader

   1 #!/bin/sh
   2
   3 upgrade_bootloader() {
   4         local diskdev
   5
   6         . /lib/upgrade/common.sh
   7
   8         if [ ! -f /boot/grub/upgraded ] && export_bootdevice && export_partdevice diskdev 0; then
   9                 echo "(hd0) /dev/$diskdev" > /tmp/device.map
  10                 /usr/sbin/grub-bios-setup \
  11                         -m "/tmp/device.map" \
  12                         -d "/boot/grub" \
  13                         -r "hd0,msdos1" \
  14                         "/dev/$diskdev" \
  15                 && touch /boot/grub/upgraded
  16         fi
  17 }
  18
  19 [ "$INITRAMFS" = "1" ] || boot_hook_add preinit_main upgrade_bootloader