When starting with an empty database and a plugin installed (such as foreman_bootdisk >= 1.3) which defines custom roles, the DB migration fails as the roles table doesn't exist at startup. The plugin roles code should skip if the table isn't present yet, like the default data loader does (Role.count rescue return).

rake aborted!
Could not find table 'roles'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/connection_adapters/sqlite_adapter.rb:472:in `table_structure'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/connection_adapters/sqlite_adapter.rb:346:in `columns'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/connection_adapters/schema_cache.rb:12:in `block in initialize'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/model_schema.rb:229:in `yield'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/model_schema.rb:229:in `columns'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/model_schema.rb:249:in `column_names'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/model_schema.rb:262:in `column_methods_hash'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/dynamic_matchers.rb:74:in `all_attributes_exists?'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/dynamic_matchers.rb:27:in `method_missing'
/home/dcleal/code/foreman/foreman/app/services/foreman/plugin.rb:177:in `block in role'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/connection_adapters/abstract/database_statements.rb:192:in `transaction'
/home/dcleal/.rvm/gems/ruby-2.0.0-p247@foreman/gems/activerecord-3.2.16/lib/active_record/transactions.rb:208:in `transaction'
/home/dcleal/code/foreman/foreman/app/services/foreman/plugin.rb:176:in `role'
/home/dcleal/code/foreman/foreman_bootdisk/lib/bootdisk/engine.rb:28:in `block (2 levels) in <class:Engine>'
/home/dcleal/code/foreman/foreman/app/services/foreman/plugin.rb:61:in `instance_eval'
/home/dcleal/code/foreman/foreman/app/services/foreman/plugin.rb:61:in `register'
/home/dcleal/code/foreman/foreman_bootdisk/lib/bootdisk/engine.rb:20:in `block in <class:Engine>'