6.0 and 6.1 Co-exist topology

You have 6.0.xx installed on a machine. You wanted to install 6.1 on the same machine and migrate 6.0.xx to 6.1 later.
Now, You found that, your 6.1 installation going on smooth, but, you are amazed to see this message at the end of your log.txt
(Sep 11, 2009 4:00:11 PM), Process, com.ibm.ws.install.ni.ismp.installtoolkitbridge.ISMPInstallToolkitBridgeForNIFramework, wrn, Config action failed: 97SInstallInvokeWSProfile - /software/IBM/WebSphere61/AppServer/properties/version/nif/config/install/97SInstallInvokeWSProfile.ijc
(Sep 11, 2009 4:00:11 PM), Process, com.ibm.ws.install.ni.ismp.actions.InstallNIFPackage, msg1, Running configuration command: clearClassCache, percent complete: 25%
(Sep 11, 2009 4:00:11 PM), Process, com.ibm.ws.install.ni.ismp.actions.InstallNIFPackage, msg1, Running configuration command: os400fp, percent complete: 50%
(Sep 11, 2009 4:00:11 PM), Process, com.ibm.ws.install.ni.ismp.actions.InstallNIFPackage, msg1, Running configuration command: copyEmbedProductFile, percent complete: 75%
(Sep 11, 2009 4:00:11 PM), Process, com.ibm.ws.install.ni.ismp.actions.InstallNIFPackage, msg1, Running configuration command: runISCDeployRestore, percent complete: 100%
(Sep 11, 2009 4:04:37 PM), Process, com.ibm.ws.install.ni.ismp.actions.SettleNIFRegistryAction, msg1, Current install/uninstall process is successful. Process type is: install
(Sep 11, 2009 4:04:37 PM), Process, com.ibm.ws.install.ni.ismp.actions.SetExitCodeAction, msg1, CWUPI0000I: EXITCODE=2
(Sep 11, 2009 4:04:37 PM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogSuccessMessageAction, msg1, INSTCONFPARTIALSUCCESS


The reason for this is, since you already installed 6.0.xx, you have already used default ports. Now, for the new installation, you need to tell the installer not to look for default ports.

Explore the following technote -


http://www-01.ibm.com/support/docview.wss?rs=180&context=SSEQTP&q1=wrn%2c+Config+action+failed%3a+97SInstallInvokeWSProfile&uid=swg21261120&loc=en_US&cs=utf-8&lang=en