In the documents, it was mentioned that the installation creates the database schema. It doesn't happen in mine.
My fresh portal installation returns the following error when starting up Jboss AS:
00:27:43,664 WARN [SessionFactoryObjectFactory] InitialContext did not implement EventContext
00:27:43,664 INFO [NamingHelper] JNDI InitialContext properties:{}
00:27:43,664 INFO [SessionFactoryImpl] Checking 0 named queries
00:27:43,664 INFO [SessionFactoryBinder] Hibernate dialect used org.hibernate.dialect.MySQLDialect
00:27:44,445 WARN [JDBCExceptionReporter] SQL Error: 1146, SQLState: S1000
00:27:44,445 ERROR [JDBCExceptionReporter] General error message from server: "Table 'jbossportal.jbp_user_pref_set' doesn't exist"
00:27:44,515 WARN [ServiceController] Problem starting service portal:service=Hibernate
org.hibernate.exception.GenericJDBCException: could not execute query
at org.hibernate.exception.SQLStateConverter.handledNonSpecificException(SQLStateConverter.java:91)
at org.hibernate.exception.SQLStateConverter.convert(SQLStateConverter.java:79)
at org.hibernate.exception.JDBCExceptionHelper.convert(JDBCExceptionHelper.java:43)
at org.hibernate.loader.Loader.doList(Loader.java:2150)
at org.hibernate.loader.Loader.listIgnoreQueryCache(Loader.java:2026)