Finally I understand what I have to do and can continue. User hint: EVALuate the code.
Edit: got root shell, looking for user and root hashs. 
(is a jail)
Edit 2: got user, now fight to get root.
Finally I understand what I have to do and can continue. User hint: EVALuate the code.
Edit: got root shell, looking for user and root hashs. (is a jail)
Edit 2: got user, now fight to get root.