Everything should be set up, and you should be ready to put your new, more secure BIND into action. Assuming you set up a SysV-style init script, you can simply launch it as:
Make sure you kill any old versions of BIND still running before doing this.# /etc/rc.d/init.d/named start
If you take a look at your logs, you should find the initialisation messages that BIND spits out when it loads. (If not, there's a problem with your logging configuration that you need to fix.) Amongst those messages, BIND should tell you that it chrooted successfully, and that it is running as the user and group named. If not, you have a problem.
You can go take a nap now ;-).