target/linux/ramips/mt7621/base-files/lib/upgrade/zyxel.sh

   1 #
   2 # Copyright (C) 2023 OpenWrt.org
   3 #
   4
   5 . /lib/functions.sh
   6
   7 zyxel_mstc_prepare_fail() {
   8         echo "failed to check and prepare the environment, rebooting..."
   9         umount -a
  10         reboot -f
  11 }
  12
  13 zyxel_mstc_upgrade_prepare() {
  14         local persist_mtd="$(find_mtd_part persist)"
  15         local firmware_mtd="$(find_mtd_part firmware)"
  16
  17         if [ -z "$persist_mtd" ] || [ -z "$firmware_mtd" ]; then
  18                 echo 'cannot find mtd partition(s) "persist" or "firmware"'
  19                 zyxel_mstc_prepare_fail
  20         fi
  21
  22         local bootnum=$(hexdump -s 4 -n 1 -e '"%x"' ${persist_mtd})
  23
  24         if [ "$bootnum" != "1" ] && [ "$bootnum" != "2" ]; then
  25                 echo "failed to get bootnum, please check the value at 0x4 in ${persist_mtd}"
  26                 zyxel_mstc_prepare_fail
  27         fi
  28         echo "current: bootnum => ${bootnum}"
  29
  30         [ "$(fw_printenv -n bootmenu_delay)" = "3" ] || fw_setenv bootmenu_delay 3
  31
  32         if [ "$bootnum" = "2" ]; then
  33                 if ! ( echo -ne "\x01" | dd of=${persist_mtd} count=1 bs=1 seek=4 conv=notrunc 2>/dev/null ); then
  34                         echo "failed to set new boot partition"
  35                         zyxel_mstc_prepare_fail
  36                 fi
  37                 echo "### switch to 1st os-image on next boot ###"
  38         fi
  39 }