Updating the ports collection

[Chris Stankevitz]

The FreeBSD handbook section 4.5.1 describes several methods for 
obtaining the ports collection including CVSup, Portsnap, and sysinstall.

Section 4.5.1 also describes how to update the ports collection, but 
only for the CVSup and Portsnap methods.

Q1: How do I update the ports collection after using sysinstall to 
obtain it?

Q2: Is this explained in the handbook?  If so, where?

Thank you,

Chris

PS: I uses sysinstall to obtain the ports collection from the CD during 
OS install