Updating a minimal install

[Steve Bertrand]

Hi all,

I have minimal (base) system of 6.2 that I run entirely from thumb 
drive. It has nothing extra (man pages etc).

This system needs to be upgraded to 7.0.

Is there an easy way to upgrade this installation so that ONLY the 
information that is currently installed is upgraded? I don't want 
anything additional installed during the upgrade.

I'm certain that by default a make buildworld/installworld will install 
too much.

Will a binary upgrade 'do the right thing'?

Steve