Here you can see the root of the problem:
--- MBEANS THAT ARE THE ROOT CAUSE OF THE PROBLEM ---
ObjectName: jboss.jca:service=DataSourceBinding,name=PortalDS
State: NOTYETINSTALLED
Depends On Me:
portal:service=Hibernate,type=CMS
portal:service=CMS
portal:service=Hibernate,type=Workflow
portal:service=Hibernate,type=WSRPConsumer
portal:service=Hibernate
portal:service=Hibernate,type=Instance
portal:service=Hibernate,type=PortalObject
portal:service=Hibernate,type=Portlet
This return the following exception for the datasource of the portal:
2010-07-21 13:50:27,196 ERROR [org.jboss.portal.server.servlet.PortalServlet] Unexpected exception
java.lang.NullPointerException
at org.jboss.portal.core.impl.model.portal.PersistentPortalObjectContainer.getObjectNode(PersistentPortalObjectContainer.java:252)
at org.jboss.portal.core.impl.model.portal.AbstractPortalObjectContainer.getContext(AbstractPortalObjectContainer.java:112)
at org.jboss.portal.core.impl.model.portal.AbstractPortalObjectContainer.getContext(AbstractPortalObjectContainer.java:81)
at org.jboss.portal.core.model.portal.DefaultPortalCommandFactory.doMapping(DefaultPortalCommandFactory.java:72)
at org.jboss.portal.core.controller.Controller.handle(Controller.java:252)
at org.jboss.portal.server.RequestControllerDispatcher.invoke(RequestControllerDispatcher.java:51)
at org.jboss.portal.common.invocation.Invocation.invokeNext(Invocation.java:131)
at org.jboss.portal.common.invocation.Invocation.invoke(Invocation.java:157)
at org.jboss.portal.server.servlet.PortalServlet.service(PortalServlet.java:252)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:803)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:96)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:230)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175)
at org.jboss.web.tomcat.security.SecurityAssociationValve.invoke(SecurityAssociationValve.java:182)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:432)
at org.jboss.web.tomcat.security.JaccContextValve.invoke(JaccContextValve.java:84)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
at org.jboss.web.tomcat.service.jca.CachedConnectionValve.invoke(CachedConnectionValve.java:157)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:262)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:856)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:566)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1508)
at java.lang.Thread.run(Thread.java:636)
Hope this helps ;)