2 # Copyright (C) 2014 OpenWrt.org
5 linksys_get_target_firmware
() {
6 cur_boot_part
=`/usr/sbin/fw_printenv -n boot_part`
8 if [ "$cur_boot_part" = "1" ]
10 # current primary boot - update alt boot
11 target_firmware
="kernel2"
13 fw_setenv bootcmd
"run altnandboot"
14 elif [ "$cur_boot_part" = "2" ]
16 # current alt boot - update primary boot
17 target_firmware
="kernel1"
19 fw_setenv bootcmd
"run nandboot"
22 echo "$target_firmware"
25 linksys_get_root_magic
() {
26 (get_image
"$@" |
dd skip
=786432 bs
=4 count
=1 |
hexdump -v -n 4 -e '1/1 "%02x"') 2>/dev
/null
29 platform_do_upgrade_linksys
() {
30 local magic_long
="$(get_magic_long "$1")"
33 local part_label
="$(linksys_get_target_firmware)"
34 touch /var
/lock
/fw_printenv.lock
36 if [ ! -n "$part_label" ]
38 echo "cannot find target partition"
42 local target_mtd
=$
(find_mtd_part
$part_label)
44 [ "$magic_long" = "73797375" ] && {
45 CI_KERNPART
="$part_label"
46 if [ "$part_label" = "kernel1" ]
55 [ "$magic_long" = "27051956" ] && {
56 # check firmwares' rootfs types
57 local target_mtd
=$
(find_mtd_part
$part_label)
58 local oldroot
="$(linksys_get_root_magic $target_mtd)"
59 local newroot
="$(linksys_get_root_magic "$1")"
61 if [ "$newroot" = "55424923" -a "$oldroot" = "55424923" ]
62 # we're upgrading from a firmware with UBI to one with UBI
64 # erase everything to be safe
66 get_image
"$1" | mtd
-n write - $part_label
68 get_image
"$1" | mtd
write - $part_label
73 linksys_preupgrade
() {
74 export RAMFS_COPY_BIN
="${RAMFS_COPY_BIN} /usr/sbin/fw_printenv /usr/sbin/fw_setenv"
75 export RAMFS_COPY_BIN
="${RAMFS_COPY_BIN} /bin/mkdir /bin/touch"
76 export RAMFS_COPY_DATA
="${RAMFS_COPY_DATA} /etc/fw_env.config /var/lock/fw_printenv.lock"
79 append sysupgrade_pre_upgrade linksys_preupgrade