BIEE

安装weblogic时遇到两个问题，请教如何处理

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准备搭建BIEE12C，新安装的系统oracle linux 6.7，ORACLE和JDK安装成功，但是在安装WEBLOGIC时，出现如下问题，到网上找了资料也没有解决，可能是方法不对，请教各位老师，该如何处理
以下是错误信息（附件中有安装的详细信息，上传附件不能是LOG文件，所以改了后缀名。）
Verify that your DISPLAY environment variable is set correctly,
and that there is an X11 server on the system. If you are
running the Oracle Installer as a different user or on a different host,
you may need to use the xhost command to ensure that host/user
has permission to write to your display.

通过XSHELL的查看结果为：
[biee@biee12c 12.2.1.1]$ echo $DISPLAY
localhost:10.0
在虚拟机内部的结果为：
[biee@biee12c 12.2.1.1]$ echo $DISPLAY
:0.0

另外一个问题是在解压后会提示
Extracting the installer . . . . . . . Done
Java HotSpot(TM) Client VM warning: You have loaded library /tmp/orcl8543825479592497927.tmp/Disk1/install/linux/libjni.so which might have disabled stack guard. The VM will try to fix the stack guard now.
It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'.

这是什么原因呢？