hello everyone, i am attempting to deploy a simple jboss app that uses mysql as a datasource. this is the first time i have tried to connect to anything but the default datasource. this is the error that i am getting: --- MBeans waiting for other MBeans --- ObjectName: jboss.j2ee:jar=jbosstest.jar,name=ClockOperationsLocalBean,service=EJB3 State: NOTYETINSTALLED I Depend On: persistence.units:unitName=MYSQLDS ObjectName: jboss.j2ee:jar=jbosstest.jar,name=ClockOperationsRemoteBean,service=EJB3 State: NOTYETINSTALLED I Depend On: persistence.units:unitName=MYSQLDS --- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM --- ObjectName: persistence.units:unitName=MYSQLDS State: NOTYETINSTALLED Depends On Me: jboss.j2ee:jar=jbosstest.jar,name=ClockOperationsLocalBean,service=EJB3 jboss.j2ee:jar=jbosstest.jar,name=ClockOperationsRemoteBean,service=EJB3 << this is my persistence.xml file: <local-tx-datasource> <jndi-name>MYSQLDS</jndi-name> <connection-url>jdbc:mysql://localhost:3306/primexdb</connection-url> <driver-class>com.mysql.jdbc.Driver</driver-class> <user-name>x</user-name> y <type-mapping>mySQL</type-mapping> </local-tx-datasource> i have made sure that that mysql jar file is located in the default/lib dir and i have also copied the sample mysql-ds.xml file in to the deploy directory - after making appropriate changes (not sure if this is redundant or not). thx for any help mark View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4068408#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...