好久的问题了，一直困扰，望terran相助！

Initializing Java Virtual Machine from /tmp/OraInstall0/jre/bin/jre. Please wait...
Xlib: connection to "127.0.0.1:0.0" refused by server
Xlib: No protocol specified

java.lang.InternalError: Can't connect to X11 window server using '127.0.0.1:0.0' as the value of the DISPLAY variable.
        at sun.awt.motif.MToolkit.<init>(MToolkit.java:43)
        at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:399)
        at java.awt.Font.initializeFont(Font.java:106)
        at java.awt.Font.<init>(Font.java:121)
        at oracle.sysman.oii.oiif.oiifm.OiifmSplashScreen.<init>(OiifmSplashScreen.java:42)
        at oracle.sysman.oii.oiif.oiifm.OiifmSplashScreen.<init>(OiifmSplashScreen.java:64)
        at oracle.sysman.oii.oiic.OiicInstaller.main(OiicInstaller.java:423)　　　　　　

好像你的x-windows进不去啊!安装要在x-windows下的,你的jdk也没装!