Installing FreeBSD on multy hosts

[Wojciech Puchar]

> Well - and if need just to power on server and say it to boot at PXE and go 
> away for 30 min.
> And then I came back - I have a typical preconfigured server.
> I need full automatisation.
so make simple PXE bootable system and write script to make 
disklabels, do newfs, install (copy/untar) your system, fix rc.conf and 
make disk bootable