问题

./runInstaller -silent -force -ignorePrereq -ignoreSysPrereqs -responseFile /home/oracle/database/response/db_install.rsp
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 javax.swing.UIManager.initialize(UIManager.java:1262)
	at javax.swing.UIManager.maybeInitialize(UIManager.java:1245)
	at javax.swing.UIManager.getUI(UIManager.java:851)
	at javax.swing.JPanel.updateUI(JPanel.java:104)
	at javax.swing.JPanel.<init>(JPanel.java:64)
	at javax.swing.JPanel.<init>(JPanel.java:87)
	at javax.swing.JPanel.<init>(JPanel.java:95)
	at oracle.sysman.oii.oiif.oiifo.OiifoOCMUI.<init>(OiifoOCMUI.java:125)
	at oracle.sysman.oii.oiif.oiifo.OiifoOCMInterfaceManager.<init>(OiifoOCMInterfaceManager.java:79)
	at oracle.sysman.oii.oiif.oiifo.OiifoOCMInterfaceManager.getInstance(OiifoOCMInterfaceManager.java:124)
	at oracle.install.ivw.db.driver.DBInstaller.run(DBInstaller.java:123)
	at oracle.install.commons.util.Application.startup(Application.java:869)
	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)

解决方法

通过搜索查找解决方法都提示是Java的问题。但Oracle会先解压出jdk包在自己的tmp目录下，所以该问题不是由PATH、CLASSPATH、JAVA_HOME这几个Java环境变量引起的。

执行

unset DISPLAY

即可解决该问题。

最后，再执行 ./runInstaller命令，即可执行成功。