Chef-server runit failing on Ubuntu

I have bootstrapped chef-server onto an Ubuntu 10.0.4 VM under vagrant
following the instructions in
Everything is happy, except chef-server and chef-server-webui are not running
at startup. I am no Linux admin expert, but everything seems in the right place
re sv, runsv, etc. There are runsv processes monitoring chef-server and
chef-server-webui, but nothing listening on port 4000 or 4040. Nothing useful
in /var/log/chef/server.log. If I take the chef-server startup command from
/etc/service/chef-server/run and run it manually on the command line, it starts
up fine and happily serves requests on port 4000.

Anyone run into similar problems?