Date: 25-07-06 21:53
FreeBSD 4.8 did not have devfs, hence why there is no option for it on your previous setup. The jail should be setup using freebsd RC system. Here is a quick example of the entries you need in /etc/rc.conf on the HOST
you cannot use raw ip sockets within the jail, its just a limitation of the system. so things like ping, and traceroute just wont work.
You do not need the CD-ROM to install postfix, or anything really. you should be using the ports system to do this. Take a look at section 4 of the handbook (http://www.freebsd.org/handbook/) and also `man ports`
Hope this helps