I installed mongodb with the instructions here. Fresh installation of ubuntu btw. It installed without error, but upon attempting to start, stop or restart the service, I got
start: Unknown job: mongodb
Invoking "mongod" from the commandline seems to work, as I can view statistics of mongodb fine from localhost:28017.
I've also attempted to use the official ubuntu package "mongodb" instead of "mongodb-10gen" but no luck there either.