First you'll want to make sure mongrel_cluster start scripts are in /etc/init.d/
you can do this by symlinking the one provided by Bradley Taylor:
ln -s /usr/local/lib/ruby/gems/1.8/gems/mongrel_cluster-0.2.0/resources/mongrel_cluster
and then making it executable:
chmod +x /etc/init.d/mongrel_cluster
You can then issue the commands: /etc/init.d/mongrel_cluster start and stop.
you may also want to symlink your mongrel_cluster.yml configs to
ln -s /path/to/your/app/config/mongrel_cluster.yml
Then to make sure it started on boot, on Fedora, you'd use chkconfig:
/sbin/chkconfig --level 345 mongrel_cluster on
to turn in on on runleves 3 4 5 (this is the same as):
/sbin/chkconfig mongrel_cluster on
another way, is to put a line your /etc/crontab file:
@reboot root /path/to/mongrel_cluster # etc.