Without -d64 the 32bit vm will be used: | [...] | 15:14:08,853 INFO [Server] Patch URL: null | 15:14:08,854 INFO [Server] Server Name: pb-cms2 | 15:14:08,854 INFO [Server] Server Home Dir: /cms/jboss-4.2.1.GA_slimmed/server/pb-cms2 | 15:14:08,855 INFO [Server] Server Home URL: file:/cms/jboss-4.2.1.GA_slimmed/server/pb-cms2/ | 15:14:08,856 INFO [Server] Server Log Dir: /cms/jboss-4.2.1.GA_slimmed/server/pb-cms2/log | 15:14:08,857 INFO [Server] Server Temp Dir: /cms/jboss-4.2.1.GA_slimmed/server/pb-cms2/tmp | 15:14:08,866 INFO [Server] Root Deployment Filename: jboss-service.xml | 15:14:09,948 INFO [ServerInfo] Java version: 1.5.0_16,Sun Microsystems Inc. | 15:14:09,949 INFO [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.5.0_16-b02,Sun Microsystems Inc. | 15:14:09,949 INFO [ServerInfo] OS-System: SunOS 5.10,sparc | 15:14:11,514 INFO [Server] Core system initialized | 15:14:20,376 WARN [DeploymentOrderComparator] Could not read reload-period from mbean. | 15:14:20,378 WARN [DeploymentOrderComparator] Could not read configuration-location from mbean. | 15:14:20,378 INFO [DeploymentOrderComparator] Initializing with: reloadPeriod=120000, location=JBOSS_SERVER_HOME/conf/deployment-order.conf, strictToModules=false | 15:14:20,726 INFO [WebService] Using RMI server codebase: http://10.11.17.100:18083/ | 15:14:22,870 INFO [TransactionManagerService] JBossTS Transaction Service (JTA version) - JBoss Inc. | 15:14:22,871 INFO [TransactionManagerService] Setting up property manager MBean and JMX layer | [...] | and then the jboss boots without any error. Yes, as this configuration runs on other systems (x86 system, this one is the first sparc we have) in 32 bit and 64 bit. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4174596#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...