When is BuildWorld necessary?

[Laurence Sanford]

pobox at verysmall.org wrote:
>
> But I have one question - do you rebuild the world on a remote machine 
> (without physical access) and if yes - how do you restart in single 
> user mode. This is what I can't understand so far.
>
> Thanks,
> Iv

In 6 years, I've never dropped any machine to single user to do any part 
of a buildworld upgrade. I've stopped many running services, but never 
gone to single user. The only time I had any problems with this approach 
was when I blindly flubbed versions in my supfile and cvsup'd a 6 system 
with 4 source. That wasn't pretty. But it would have been not pretty in 
single user mode as well.