}
local md5_img=$(dd if="$1" bs=2 skip=9 count=16 2>/dev/null)
- local md5_chk=$(dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
+ local md5_chk=$(fwtool -q -t -i /dev/null "$1"; dd if="$1" bs=$CI_BLKSZ skip=1 2>/dev/null | md5sum -); md5_chk="${md5_chk%% *}"
if [ -n "$md5_img" -a -n "$md5_chk" ] && [ "$md5_img" = "$md5_chk" ]; then
return 0