- Wny I couldn't login as "root" at
the graphical
     interface after I had just set the password (and yes,
     I checked that the password was entered correctly) 
 Not sure about single-user
mode, but normally, NeXT machines use
 nis/yp
 for authentication, so the fact that the /etc/passwd file was updated
 isn't all that helpful.
 The nidump and niload commands might be of interest to you in
 understanding this.  Also, there are other tables besides passwd
 stored
 in nis. 
 
 NIS/YP and NetInfo aren't *exactly* the same thing.