To auto start a odoo/openerp service:
Find out the name of service’s script from /etc/init.d/ directory e.g. odoo-server
1) Add it to chkconfig
sudo /sbin/chkconfig --add odoo-server
2) Make sure it is in the chkconfig.
sudo /sbin/chkconfig --list odoo-server
3) Set it to autostart
sudo /sbin/chkconfig odoo-server on