Hard Drive Problems

Hi,
I have just gotten an 80gb SCSI hard drive (we'll call this HD 2) and am trying to use it with my FreeBSD machine.  I already have a SCSI HD (HD 1) in use and it works great.  The new 80gig drive is recognized and seems to work fine, it even formatted just fine.  The problem is that when I try to boot up the machine tries to load my OS from the internet and not from HD1.  Any ideas?