target/linux/apm821xx/base-files/lib/upgrade/wdbook.sh

   1 . /lib/functions.sh
   2
   3 get_magic_at() {
   4         local file="$1"
   5         local pos="$2"
   6         get_image "$file" | dd bs=1 count=2 skip="$pos" 2>/dev/null | hexdump -v -n 2 -e '1/1 "%02x"'
   7 }
   8
   9 mbl_do_platform_check() {
  10         local board="$1"
  11         local file="$2"
  12         local magic
  13
  14         magic=$(get_magic_at "$file" 510)
  15
  16         [ "$magic" != "55aa" ] && {
  17                 echo "Failed to verify MBR boot signature."
  18                 return 1
  19         }
  20
  21         return 0;
  22 }
  23
  24 mbl_do_upgrade() {
  25         sync
  26         get_image "$1" | dd of=/dev/sda bs=2M conv=fsync
  27         sleep 1
  28 }
  29
  30 mbl_copy_config() {
  31         mkdir -p /boot
  32         [ -f /boot/uImage ] || mount -t ext4 -o rw,noatime /dev/sda1 /boot
  33         cp -af "$CONF_TAR" /boot/
  34         sync
  35         umount /boot
  36 }