Yeah, that helps a lot. I managed to complete the installation last night, and it works. However, it appears I am going to have to roll back the java version to 1.6.18 from 1.6.20, according to this note. Does anyone know if that is even possible, or will I need to uninstall and reinstall again? 2010/7/27 Павел Ермаков <ocp.pauler@xxxxxxxxx> > Hi > > Maybe this note 1106105.1 will help you > > 2010/7/26 Andrew Kerber <andrew.kerber@xxxxxxxxx> > > Nope, this is a clean install. >> >> >> On Mon, Jul 26, 2010 at 2:00 PM, <lyallbarbour@xxxxxxxxxxxxxxx> wrote: >> >>> The port that Grid usually uses is 4889. Are you installing and then >>> upgrading from the old 10gr5? if so, that might be the problem. The old >>> grid is using it? >>> Lyall >>> >>> >>> -----Original Message----- >>> From: Andrew Kerber <andrew.kerber@xxxxxxxxx> >>> To: ORACLE-L <oracle-l@xxxxxxxxxxxxx> >>> Sent: Mon, Jul 26, 2010 2:36 pm >>> Subject: OEM 11g grid installation problem - omsca >>> >>> I am attempting the installation of oem 11gr1. In the configuration >>> assistant portion, the OMSCA is failing with this error. It looks like it >>> is complaining about a port being in use, but I cant tell which one. Any >>> ideas? >>> >>> OEL 64 bit 5.5, >>> Weblogic 10.3.2 >>> Java 1.6.: >>> >>> FINE: MDS Schema is there >>> Jul 26, 2010 1:26:17 PM >>> oracle.sysman.omsca.util.CoreOMSConfigAssistantUtil checkPort >>> SEVERE: Exception: >>> java.net.BindException: Address already in use >>> at java.net.PlainSocketImpl.socketBind(Native Method) >>> at >>> java.net.AbstractPlainSocketImpl.bind(AbstractPlainSocketImpl.java:336) >>> at java.net.ServerSocket.bind(ServerSocket.java:336) >>> at java.net.ServerSocket.<init>(ServerSocket.java:202) >>> at >>> oracle.sysman.omsca.util.CoreOMSConfigAssistantUtil.checkPort(CoreOMSConfigAssistantUtil.java:2251) >>> at >>> oracle.sysman.omsca.adapter.wls.OMSWLSAdapterUtil.checkNodeMgrPort(OMSWLSAdapterUtil.java:656) >>> at >>> oracle.sysman.omsca.adapter.wls.OMSWLSAdapter.adapterPreReq(OMSWLSAdapter.java:1173) >>> at >>> oracle.sysman.omsca.framework.OMSGenericAdapter.doPreRequisiteChecks(OMSGenericAdapter.java:264) >>> at >>> oracle.sysman.omsca.framework.OMSCAFreshInstall.execute(OMSCAFreshInstall.java:90) >>> at >>> oracle.sysman.omsca.framework.OMSConfigAssistantDriver.main(OMSConfigAssistantDriver.java:210) >>> Jul 26, 2010 1:26:17 PM oracle.sysman.omsca.adapter.wls.OMSWLSAdapter >>> adapterPreReq >>> FINE: OMSWLSAdapter::Failed to validate node manager port >>> Jul 26, 2010 1:26:17 PM oracle.sysman.omsca.framework.OMSCAFreshInstall >>> execute >>> SEVERE: ERROR: Pre req checks of EM failed. >>> Jul 26, 2010 1:26:17 PM >>> oracle.sysman.omsca.framework.OMSConfigAssistantDriver main >>> FINE: Got resultfalse >>> >>> >>> -- >>> Andrew W. Kerber >>> >>> 'If at first you dont succeed, dont take up skydiving.' >>> >> >> >> >> -- >> Andrew W. Kerber >> >> 'If at first you dont succeed, dont take up skydiving.' >> > > -- Andrew W. Kerber 'If at first you dont succeed, dont take up skydiving.'