User development, A new message was posted in the thread "MySQL 5.1 with JBoss ESB 5.0.0": http://community.jboss.org/message/531486#531486 Author : Peter Johnson Profile : http://community.jboss.org/people/peterj Message: -------------------------------------------------------------- Looking at that link, it appears that they are giving the steps for replacing HSQL with MySQL for all of the services, not just for strictly the ESB portions. Though I guess that in a production environment that is really what you want to do anyway. But that leaves a lot of possibilities as to what wen wrong. You might want to try things one step at a time. I recommend doing the basic JBoss AS services first, well everything except JBoss Messaging. Then do Messaging, And finally tackle ESB.   Here is a prior disucssion on moving JBoss AS to MySQL: http://community.jboss.org/message/204473   Here are some links that might also help: http://community.jboss.org/wiki/JBossESB47switchfromHSQLDBtoPotsgresqlonJ...   If none of this helps, please post the first exception stack trace that you are seeing in the console log. -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/531486#531486