Oracle installation fails to use the command/usr/bin/xdpyinfo to automatically check the display color

Oracle installation fails to use the command/usr/bin/xdpyinfo to automatically check the display color. Use the root user [root @ dev ~] # When xhost + can install Oracle on www.2cto.com on Linux, the following error is often reported: The command/usr/bin/xdpyinfo cannot be used to automatically check the display color. Check whether the DISPLAY variable is set. You can use the following command to solve this problem: 1. run # xdpyinfo under root to record the string after name of display:, for example, 127.0.0.1: 1.0 2. # xhost + return information: access control disabled, clients can connect from any host 3. switch to Oracle user: www.2cto.com # su-oracle 4. execute the command: export DISPLAY =: 1.0 5. run the xdpyinfo command in Oracle. If the command is displayed normally, the setting is successful.