安装oracle $ ./runInstaller 报错

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                      $ ./runInstaller
Starting Oracle Universal Installer...
Checking Temp space: must be greater than 120 MB.   Actual 16652 MB    Passed
Checking swap space: must be greater than 150 MB.   Actual 8191 MB    Passed
Checking 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 Ded <<<<
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/OraInstall2015-09-09_05-26-05PM. Please wait .
DISPLAY not set. Please set the DISPLAY and try again.
Depending on the Unix Shell, you can use one of the following commands as examples to set the DISPLAY e
- For csh:     % setenv DISPLAY 192.168.1.128:0.0
- For sh, ksh and bash:  $ DISPLAY=192.168.1.128:0.0; export DISPLAY
Use the following command to see what shell is being used:
echo $SHELL
Use the following command to view the current DISPLAY environment variable setting:
echo $DISPLAY
- Make sure that client users are authorized to connect to the X Server.
To enable client users to access the X Server, open an xterm, dtterm or xconsole as the user that startlowing command:
% xhost +
To test that the DISPLAY environment variable is set correctly, run a X11 based program that comes withch as 'xclock':
% <full path to xclock.. see below>
If you are not able to run xclock successfully, please refer to your PC-X Server or OS vendor for furth
Typical path for xclock: /usr/X11R6/bin/xclock
解决方法：
yum groupinstall "Desktop"
yum groupinstall "X Window System"
yum groupinstall "KDE Desktop"
安装oracle需要图形用户界面，需要安装这些才会出来那个界面