Since upstart 1.5 comes with Ubuntu 12.04,
bum and sysv-rc-conf is no longer effective on it.
How can I config?
Upstart has been available in Ubuntu since Edgy (6.10). Full details are available in the manual pages on your system:
However, for a gentler and less terse introduction, please see the Upstart Cookbook:
Note that Upstart in 12.04 still continues to Support SystemV jobs, but you are encouraged to write new services using Upstart since it's a lot better! :-)
Here is some information on how to start creating a new Upstart job:
http://upstart.ubuntu.com/cookbook/#precepts-for-creating-a-job-configuration-file
I would also highly recommend looking at the existing jobs in /etc/init/ to see how they work (some are disected in detail in the Upstart Cookbook).