远程安装oracle，执行"./runistaller"后，出现如下情况。
[oracle@zwdb Disk1]$ ./runInstaller
Starting Oracle Universal Installer...
Checking installer requirements...
Checking operating system version: must be redhat-3, SuSE-9, SuSE-10, redhat-4, redhat-5, redhat-6, UnitedLinux-1.0, asianux-1, asianux-2, asianux-3, enterprise-4, enterprise-5 or SuSE-11
Passed
All installer requirements met.
Preparing to launch Oracle Universal Installer from /tmp/OraInstall2013-05-25_12-16-32AM. 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 environment variable:
- 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 $DISPLAY
- Make sure that client users are authorized to connect to the X Server.
To enable client users to access the X Server, open an xterm, dtterm or xconsole as the user that started the session and type the following command:
% xhost +
To test that the DISPLAY environment variable is set correctly, run a X11 based program that comes with the native operating system such as 'xclock':
% <full path to xclock.. see below>
If you are not able to run xclock successfully, please refer to your PC-X Server or OS vendor for further assistance.
Typical path for xclock: /usr/X11R6/bin/xclock
原因在于：我是通过SecurCRT/SSH从别的机子远程过去，现在被装机子要传远程的安装界面。而我本地机子是没有开启图形传送功能的。
解决：
在本地机子安装Xmanager等可传虚拟图形的工具。（本地机为A(windows)，数据库服务机为B(RHEL5.8)）
查看本机所处的虚拟纸是多少：如"0.0"，"1.0"
然后在SSH/SecurCRT上（RHEL5.8）执行：
[oracle@zwdb Disk1]$ export DISPLAY=A:0.0
[oracle@zwdb Disk1]$ ./runInstaller
执行即成功
