EER Diagram MySQL Workbench
Using MySQL Workbench you can reverse engineer a database into an EER model. See the documentation for details.


  For a visual representation (EER diagram) of this schema, select
  Model, Create Diagram from Catalog Objects to create the EER Diagram
  for the model.


There are binaries available or a PPA depending on your version of ubuntu. See here for details on the apt repository or install from source.