Migrating users and passwords from one system to another

[Paul Hoffman]

Greetings again. I'm kinda surprised that this isn't an FAQ, but...

How do I move users and passwords from a current system to a new one? 
Is it sufficient to move /etc/master.passwd and /etc/passwd, or are 
there other things?

I'm moving from an oldish 4.8 system to a brand new 4.9 system, and 
want to have all the users set up on the new machine before I start 
rsyncing everything over so that the users and groups come out right.

--Paul Hoffman