EBS安装提示libXtst.so.6: cannot open shared object file

$ ./rapidwiz 
Rapid Install Wizard is validating your file system......
CMDDIR=/app/Stage122/startCD/Disk1/rapidwiz
Rapid Install Wizard will now launch the Java Interface.....

$ Exception in thread "main" java.lang.UnsatisfiedLinkError: /app/Stage122/startCD
/Disk1/rapidwiz/jre/Linux_x64/1.6.0/lib/i386/xawt/libmawt.so: libXtst.so.6: cannot open shared object file:
 No such file or directory
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(Unknown Source)
        at java.lang.ClassLoader.loadLibrary(Unknown Source)
        at java.lang.Runtime.load0(Unknown Source)
        at java.lang.System.load(Unknown Source)
        at java.lang.ClassLoader$NativeLibrary.load(Native Method)
        at java.lang.ClassLoader.loadLibrary0(Unknown Source)
        at java.lang.ClassLoader.loadLibrary(Unknown Source)
        at java.lang.Runtime.loadLibrary0(Unknown Source)
        at java.lang.System.loadLibrary(Unknown Source)
        at sun.security.action.LoadLibraryAction.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at sun.awt.NativeLibLoader.loadLibraries(Unknown Source)
        at sun.awt.DebugHelper.<clinit>(Unknown Source)
        at java.awt.Component.<clinit>(Unknown Source)

# yum list available | grep libXtst
libXtst.i686                            1.2.2-2.1.el7                       base
libXtst-devel.i686                      1.2.2-2.1.el7                       base
libXtst-devel.x86_64                    1.2.2-2.1.el7                       base
# yum install libXtst.i686 -y
Loaded plugins: langpacks, product-id, subscription-manager
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.
base                                                                                | 4.1 kB  00:00:00     
Resolving Dependencies
--> Running transaction check
---> Package libXtst.i686 0:1.2.2-2.1.el7 will be installed
--> Processing Dependency: libXi.so.6 for package: libXtst-1.2.2-2.1.el7.i686
--> Running transaction check
---> Package libXi.i686 0:1.7.2-2.1.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

===========================================================================================================
 Package                  Arch                  Version                        Repository             Size
===========================================================================================================
Installing:
 libXtst                  i686                  1.2.2-2.1.el7                  base                   20 k
Installing for dependencies:
 libXi                    i686                  1.7.2-2.1.el7                  base                   39 k

Transaction Summary
===========================================================================================================
Install  1 Package (+1 Dependent package)

Total download size: 59 k
Installed size: 96 k
Downloading packages:
-----------------------------------------------------------------------------------------------------------
Total                                                                      1.7 MB/s |  59 kB  00:00:00     
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
Warning: RPMDB altered outside of yum.
  Installing : libXi-1.7.2-2.1.el7.i686                                                                1/2 
  Installing : libXtst-1.2.2-2.1.el7.i686                                                              2/2 
  Verifying  : libXi-1.7.2-2.1.el7.i686                                                                1/2 
  Verifying  : libXtst-1.2.2-2.1.el7.i686                                                              2/2 

Installed:
  libXtst.i686 0:1.2.2-2.1.el7                                                                             

Dependency Installed:
  libXi.i686 0:1.7.2-2.1.el7                                                                               

Complete!