Thanks for answer.
I know fiasco, can build own, parse, and not only fiasco structures. Also already build my flasher for N900/N800, but main point of extract - me need get access to config.bin for some data extraction - forgoten user code exactly. It stored in /dev1/ - so, I want acess to it from nolo mode or raw mode.
Maemo devices are very differs from standart nokia phones, so i not want dig to it very deep, just want try do something.