Does this option still exist? From the Wiki:
""If you are running this command from shell on your old host, you can grant remote access to your DreamHost database from the Panel (http://panel.dreamhost.com) > Goodies > MySQL > and click the modify link for the user on the datbase you want to migrate your data to. You will need to add the IP address of your old server to the box that says From what hosts (computers) may dbname connect to the "dbname" database?.""
I can't seem to find it.