3 # Copyright (C) 2016 Chris Blake <chrisrblake93@gmail.com>
5 # Custom upgrade script for Meraki NAND devices (ex. MR24)
6 # Based on merakinand.sh from the ar71xx target
11 merakinand_do_kernel_check
() {
14 local image_magic_word
=`(tar xf $tar_file sysupgrade-$board_name/kernel -O 2>/dev/null | dd bs=1 count=4 skip=0 2>/dev/null | hexdump -v -n 4 -e '1/1 "%02x"')`
16 # What is our kernel magic string?
19 [ "$image_magic_word" == "8e73ed8a" ] && {
20 echo "pass" && return 0
28 merakinand_do_platform_check
() {
31 local control_length
=`(tar xf $tar_file sysupgrade-$board_name/CONTROL -O | wc -c) 2> /dev/null`
32 local file_type
="$(identify_tar $2 sysupgrade-$board_name/root)"
33 local kernel_magic
="$(merakinand_do_kernel_check $1 $2)"
37 [ "$control_length" = 0 -o "$file_type" != "squashfs" -o "$kernel_magic" != "pass" ] && {
38 echo "Invalid sysupgrade file for $board_name"
43 echo "Unsupported device $board_name";
51 merakinand_do_upgrade
() {
53 local board_name
="$(cat /tmp/sysinfo/board_name)"
55 # Do we need to do any platform tweaks?
61 echo "Unsupported device $board_name";