：redhat linux下的websphereND6.1.0.0安装有关问题

请教高手：redhat linux下的websphereND6.1.0.0安装问题
以前安装过一次这个版本，后因为有种种原因，将原WAS版本卸载了，现要重装，确提示这个：

(May 21, 2010 9:39:41 AM), Process, com.ibm.ws.install.ni.ismp.actions.MaintenancePrereqCheckAction, err, CWUPI0036E:
A supported operating system was not detected. Support for your operating system might have been added after the release of the product. You can continue with the installation, but the installation migh
t not succeed. See the WebSphere Application Server supported hardware and software Web pages at http://www.ibm.com/software/webservers/appserv/doc/latest/prereq.html for more information about supporte
d operating systems.

Detected OS level: Linux wtapp1 2.6.18-53.el5xen #1 SMP Wed Oct 10 16:48:44 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
(May 21, 2010 9:39:48 AM), Process, com.ibm.ws.install.ni.ismp.actions.SetSatellitePaksAction, msg1, List of paks to uninstall and install: zip:///home/webapp/temp/was1/WAS/was.samples.pak;zip:///home/w
ebapp/temp/was1/WAS/was.samples.common.pak;zip:///home/webapp/temp/was1/WAS/was.samples.beenthere.pak;zip:///home/webapp/temp/was1/WAS/was.installconfig.pak;
(May 21, 2010 9:39:49 AM), Process, com.ibm.ws.install.ni.ismp.actions.MaintenancePrereqCheckAction, err, CWUPI0026E:
A general exception has occurred during prerequisite checking. Check the log files for more information.

请教要如何处理这种问题？谢谢！

以下是具体日志：


(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, ********************************************************************************
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, Starting a new installer run
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, ********************************************************************************
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, Java Install Path: /home/webapp/temp/was1/JDK/jre.pak/repository/package.java.jre/java/jre
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, OS Name: Linux
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, OS Architecture: amd64
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, OS Version: 2.6.18-53.el5xen
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, Current User ID: root
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, Current User Home: /root
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.ISMPLogFileAction, msg1, Current Working Directory: /home/webapp/temp/was1/WAS
(May 21, 2010 9:39:35 AM), Process, com.ibm.ws.install.ni.ismp.actions.PopulateTitleBarAction, msg1, IBM WebSphere Application Server V6.1.0.0
(May 21, 2010 9:39:41 AM), Process, com.ibm.ws.install.ni.ismp.actions.MaintenancePrereqCheckAction, err, CWUPI0036E: 
A supported operating system was not detected. Support for your operating system might have been added after the release of the product. You can continue with the installation, but the installation migh
t not succeed. See the WebSphere Application Server supported hardware and software Web pages at http://www.ibm.com/software/webservers/appserv/doc/latest/prereq.html for more information about supporte
d operating systems.

Detected OS level: Linux wtapp1 2.6.18-53.el5xen #1 SMP Wed Oct 10 16:48:44 EDT 2007 x86_64 x86_64 x86_64 GNU/Linux
(May 21, 2010 9:39:48 AM), Process, com.ibm.ws.install.ni.ismp.actions.SetSatellitePaksAction, msg1, List of paks to uninstall and install: zip:///home/webapp/temp/was1/WAS/was.samples.pak;zip:///home/w
ebapp/temp/was1/WAS/was.samples.common.pak;zip:///home/webapp/temp/was1/WAS/was.samples.beenthere.pak;zip:///home/webapp/temp/was1/WAS/was.installconfig.pak;