Paasword from shsec when booting eli encryptet / ?

[Frank J. Beckmann]

Hi,

I start to love the new geom classes, they give me many ideas but also rise 
many questions. The man page og geli states that you can encrypt / when you 
boot from an USB pen-drive. That mast contain /boot. Does it find / or do I 
have to set rootdev in loader.conf?

And is it possible to get the password (or any other needed secret) from a 
gshsec device instead of a console prompt?
-- 
Bye
Frank