I have JBoss 4.0.5, EJB3 running under several Gentoo instances. Works perfectly. You need to provide more info before anybody can help I think.
your problem is not linked with your OS (Linux). This problem was discussed previously.
really thank you !!!
With your aid i solve my problem
by using the RC9 patch and better ! by using the jems installer !!
i was sure linux is a rocking system !!!!
thank a lot