This PPA will give you lot of useful packages to work with OpenStreetMap and has all the tools necessary to run your own OSM tileserver.
To install the PPA you can use the following commands
- sudo apt-get install software-properties-common (if you dont have the add-apt-repository package)
- sudo add-apt-repository ppa:kakrueger/openstreetmap
- sudo apt-get update
You can find the details about the repo at https://launchpad.net/~kakrueger/+archive/openstreetmap