I am trying To Install the Oracle 11g r2 on Linux 6.1 but i am Not Successful since a couple of days.When I have done all prerequisites  for oracle 11 g .But When I run The Installer I got this ErrorChecking Temp space: must be greater than 80 MB.   Actual 18741 MB    PassedChecking swap space: must be greater than 150 MB.   Actual 4095 MB    PassedChecking monitor: must be configured to display at least 256 colors    >>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set.    Failed <<<<Some requirement checks failed. You must fulfill these requirements beforecontinuing with the installation,Continue? (y/n) [n]and after I press y, I got this exception: Exception in thread main java.lang.NoClassDefFoundError        at java.lang.Class.forName0(Native Method)        at java.lang.Class.forName(Class.java:164)        at java.awt.Toolkit$2.run(Toolkit.java:821)        at java.security.AccessController.doPrivileged(Native Method)        at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)        at com.jgoodies.looks.LookUtils.isLowResolution(Unknown Source)        at com.jgoodies.looks.LookUtils.<clinit>(Unknown Source)        at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:122)        at java.lang.Class.forName0(Native Method)        at java.lang.Class.forName(Class.java:242)        at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1783)        at javax.swing.UIManager.setLookAndFeel(UIManager.java:480)        at oracle.install.commons.util.Application.startup(Application.java:758)        at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:164)        at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:181)        at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:265)        at oracle.install.ivw.db.driver.DBInstaller.startup(DBInstaller.java:114)        at oracle.install.ivw.db.driver.DBInstaller.main(DBInstaller.java:132)My environment variables in ~/.bash_profile are:TMP=/tmp; export TMPTMPDIR=$TMP; export TMPDIRORACLE_HOSTNAME=oracle; export ORACLE_HOSTNAMEORACLE_UNQNAME=orcl; export ORACLE_UNQNAMEORACLE_BASE=/u01/app/oracle export ORACLE_BASEORACLE_HOME=$ORACLE_BASE/product/11.2.0/db_1 export ORACLE_HOMEORACLE_SID=orcl export ORACLE_SIDPATH=/usr/sbin:$PATH; export PATHPATH=$ORACLE_HOME/bin:$PATH; export PATHLD_LIBRARY_PATH=$ORACLE_HOME/lib:/lib:/usr/lib; export LD_LIBRARY_PATHCLASSPATH=$ORACLE_HOME/jlib:$ORACLE_HOME/rdbms/jlib; export CLASSPATHDISPLAY=oracle:0.0; export DISPLAYJAVA_HOME=/usr/local/java; export JAVA_HOMECan anyone help?
installing Oracle 11g r2 on linux 6.1
java;oracle database