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"
78 [ -f /tmp/sysupgrade.tgz ] && {
79 cp /tmp/sysupgrade.tgz /tmp/syscfg/sysupgrade.tgz
83 append sysupgrade_pre_upgrade linksys_preupgrade