Oracle-执行./runInstaller报错，弹不出图形界面

[root@Apexmic Packages]# xhost +

无论是root用户还是oracle用户均执行了xhost +

但还是报以下错误

[oracle@Apexmic database]$ ./runInstaller
Starting Oracle Universal Installer...

Checking Temp space: must be greater than 120 MB.   Actual 76868 MB    Passed
Checking swap space: must be greater than 150 MB.   Actual 5499 MB    Passed
Checking monitor: must be configured to display at least 256 colors.    Actual 16777216    Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2017-02-07_11-15-20AM. Please wait ...[oracle@Apexmic database]$ Exception in thread "main" java.lang.UnsatisfiedLinkError: /tmp/OraInstall2017-02-07_11-15-20AM/jdk/jre/lib/i386/xawt/libmawt.so: libXext.so.6: cannot open shared object file: No such file or directory
 at java.lang.ClassLoader$NativeLibrary.load(Native Method)
 at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1753)
 at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1649)
 at java.lang.Runtime.load0(Runtime.java:769)
 at java.lang.System.load(System.java:968)
 at java.lang.ClassLoader$NativeLibrary.load(Native Method)
 at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1753)
 at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1670)
 at java.lang.Runtime.loadLibrary0(Runtime.java:822)
 at java.lang.System.loadLibrary(System.java:993)
 at sun.security.action.LoadLibraryAction.run(LoadLibraryAction.java:50)
 at java.security.AccessController.doPrivileged(Native Method)
 at java.awt.Toolkit.loadLibraries(Toolkit.java:1509)
 at java.awt.Toolkit.<clinit>(Toolkit.java:1530)
 at com.jgoodies.looks.LookUtils.isLowResolution(LookUtils.java:484)
 at com.jgoodies.looks.LookUtils.<clinit>(LookUtils.java:249)
 at com.jgoodies.looks.plastic.PlasticLookAndFeel.<clinit>(PlasticLookAndFeel.java:135)
 at java.lang.Class.forName0(Native Method)
 at java.lang.Class.forName(Class.java:242)
 at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:1779)
 at javax.swing.UIManager.setLookAndFeel(UIManager.java:453)
 at oracle.install.commons.util.Application.startup(Application.java:780)
 at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:165)
 at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:182)
 at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:348)
 at oracle.install.ivw.db.driver.DBInstaller.startup(DBInstaller.java:124)
 at oracle.install.ivw.db.driver.DBInstaller.main(DBInstaller.java:155)

重启之后还是无济于事，最后仔细检查，原来关键在于红色部分，少安装了libXext.so.6这个包

[root@Apexmic Packages]# yum install -y libXext*

再执行./runInstaller就可以了