notes from my FreeBSD and Nagios upgrade

My Nagios system ran FreeBSD-current/i386 from October 2010 and Nagios 3.0.6. Business factors drove me to make some changes, and I decided to upgrade the server before making those changes. Here's some things I observed. I don't know if these is useful to you, but I'll need them for other upgrades, so what the heck.

Back up before you start. (Yes, obvious, but everyone needs a reminder.)

Building 9-stable on a -current box that old is tricky. You have to do a variety of ugly things. So don't. ...