oracle Can't connect to X11 window server using ':0.0' /Checking monitor: must be configured to display at least 256 colors解决方法

Can't connect to X11 window server using ':0.0' 解决方法

1. 以oracle 用户登陆X window

或者

2. root 身份执行

# xhost +

=======================

[oracle@rusky-oracle11g database]$ ./runInstaller  //安装报错
Starting Oracle Universal Installer...

Checking Temp space: must be greater than  MB.   Actual  MB    Passed
Checking swap space: must be greater than  MB.   Actual  MB    Passed
Checking monitor: must be configured to display at least  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 before

continuing with the installation,

Continue? (y/n) [n] y

>>> Ignoring required pre-requisite failures. Continuing...
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2015--02_07--20AM. Please wait ...[oracle@rusky-oracle11g database]$ Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

Exception in thread "main" java.lang.NoClassDefFoundError
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:)
        at java.awt.Toolkit$.run(Toolkit.java:)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:)
        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:)
        at java.lang.Class.forName0(Native Method)
        at java.lang.Class.forName(Class.java:)
        at javax.swing.SwingUtilities.loadSystemClass(SwingUtilities.java:)
        at javax.swing.UIManager.setLookAndFeel(UIManager.java:)
        at oracle.install.commons.util.Application.startup(Application.java:)
        at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:)
        at oracle.install.commons.flow.FlowApplication.startup(FlowApplication.java:)
        at oracle.install.commons.base.driver.common.Installer.startup(Installer.java:)
        at oracle.install.ivw.db.driver.DBInstaller.startup(DBInstaller.java:)
        at oracle.install.ivw.db.driver.DBInstaller.main(DBInstaller.java:)

--------------------
-------------------
[oracle@rusky-oracle11g database]$ xhost +    -----必须以root用户执行
Xlib: connection to ":0.0" refused by server
Xlib: No protocol specified

xhost:  unable to open display ":0.0"
[oracle@rusky-oracle11g database]$
DISPLAY=rusky-oracle11g.com:0.0; export DISPLAY
DISPLAY=rusky-oracle11g.com:0.0; export DISPLAY
[oracle@rusky-oracle11g database]$ ./runInstaller
Starting Oracle Universal Installer...

Checking Temp space: must be greater than  MB.   Actual  MB    Passed
Checking swap space: must be greater than  MB.   Actual  MB    Passed
Checking monitor: must be configured to display at least  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 before

continuing with the installation,

-----------------------按文档要求以root用户执行以下命令还是不行
[root@rusky-oracle11g ~]# xhost rusky-oracle11g.com
xhost:  unable to open display "rusky-oracle11g.com:0.0"
[root@rusky-oracle11g ~]# xhost +
xhost:  unable to open display "rusky-oracle11g.com:0.0"
[root@rusky-oracle11g ~]# 

[oracle@rusky-oracle11g ~]# $DISPLAY=192.168.1.203:0.0;export DISPLAY  //以oracle用户执行

最终解决办法：logout,以oracle用户登录图形界面，测试执行xclock弹出图形界面时钟。执行./runinstaller安装oracle正常。

To verify that X applications display is set properly, run a X11 based program that comes with the operating system such as xclock:

$ xclock    //正常情况下，切换到oracle用户执行xclock命令会弹出一个图形界面的时钟。

[oracle@rusky-oracle11g database]$ ./runInstaller
Starting Oracle Universal Installer...

Checking Temp space: must be greater than  MB.   Actual  MB    Passed
Checking swap space: must be greater than  MB.   Actual  MB    Passed
Checking monitor: must be configured to display at least  colors.    Actual     Passed
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2015--[oracle@rusky-oracle11g database]$ 

参考资料：http://blog.itpub.net/12801008/viewspace-1023688/  官方文档：http://docs.oracle.com/cd/E11882_01/install.112/e24326/toc.htm#CEGEGDBA