http://forums.freenas.org/threads/is-there-a-way-to-automaticly-save-the-config.400/
http://blog.sina.com.tw/allen42/article.php?pbgid=2986&entryid=602655
http://forums.nas4free.org/viewtopic.php?f=16&t=86
Freenas7 32-bit -> NAS4Free 32-bit -> NAS4Free 64-bit
我的是 Freenas7 64-bit -> NAS4Free 64-bit
1 save your config
2 use a NEW USB Key and do a fresh embeded install
3 edit a copy of your config like described in my first post or in the dowload page
4 boot from the new USB and restore modified config.
5 Use new USB and try it for a time ( one week or so).
6 if you are happy and all works fine upgrade ZFS ( freenas use old ZFS)