target/linux/ipq806x/base-files/lib/upgrade/asrock.sh

   1 . /lib/functions.sh
   2
   3
   4 asrock_bootconfig_mangle() {
   5         local mtdnum="$( find_mtd_index 0:BOOTCONFIG )"
   6
   7         if [ -z "$mtdnum" ]; then
   8                 echo "cannot find bootconfig mtd partition"
   9                 return 1
  10         fi
  11         dd if=/dev/mtd$mtdnum of=/tmp/mtd$mtdnum bs=1k
  12
  13         local partition_byte="$(dd if=/tmp/mtd$mtdnum bs=1 skip=52 count=1)"
  14         local upgrade_byte="$(dd if=/tmp/mtd$mtdnum bs=1 skip=4 count=1)"
  15
  16         if [ $1 = "bootcheck" ]; then
  17                 if [ ! -s $upgrade_byte ]; then
  18                         dd if=/dev/mtd$mtdnum of=/tmp/mtd$mtdnum bs=1k
  19                         printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=4
  20                         printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=56
  21                 else
  22                         return 1
  23                 fi
  24         elif [ $1 = "sysupgrade" ]; then
  25                 printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=4
  26                 printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=56
  27         fi
  28
  29         if [ -s $partition_byte ]; then
  30                 printf '\x01' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=52
  31         else
  32                 printf '\x00' | dd of=/tmp/mtd$mtdnum conv=notrunc bs=1 seek=52
  33         fi
  34
  35         mtd write /tmp/mtd$mtdnum /dev/mtd$mtdnum
  36         return 0
  37 }
  38
  39 asrock_upgrade_prepare() {
  40         local ubidev="$( nand_find_ubi ubi )"
  41
  42         #Set upgrade flag. If something goes wrong, router will boot with
  43         #factory firmware.
  44         asrock_bootconfig_mangle 'sysupgrade'
  45
  46         if [ $? -ne 0 ]; then
  47                 echo "cannot find bootconfig mtd partition"
  48                 exit 1
  49         fi
  50
  51         # Just delete these partitions if present and use
  52         # OpenWrt's standard names for those.
  53         ubirmvol /dev/$ubidev -N ubi_rootfs &> /dev/null || true
  54         ubirmvol /dev/$ubidev -N ubi_rootfs_data &> /dev/null || true
  55 }