I try to install Oracle 19 on CENTOS 8 GUI by run vncserver and X11

Question

I try to install Oracle 19 on CENTOS 8-GUI by using vncserver and X11. When I try to run this ./runInstaller, I got this ERROR: Unavale to verify the graphical display setup. This application requires X display. Make sure that xdpyinfo exist under PATH variable After I install X11 then I run these line: export DISPLAY=:0.0 xhost + But I got this unable to open display ":0.0" I try to see /etc/ssh/sshd_config and I got X11Forwarding yes and X11UseLocalhost yes. I got stuck there for a day.

Solution

If your computer, the one you use to connect to server, is a Linux or other UNIX machine with a GUI, you can install xorg-x11-xauth package to the server,
sudo yum install xorg-x11-xauth,
then log in to it using,
ssh -X IP or name
and you should be able to run the GUI installer of Oracle. No need to export display.

If your computer is a Windows or Mac, you should start an X server first. On Windows there's a nice terminal emulator, MobaXterm which starts an X server automatically.

Comments

[Krackout]

Perhaps yes, but you have to locate the rpm and install it on Centos 8. You can also use Oracle Linux (almost identical to Centos) which includes the pre-installation package for Oracle RDBMS. Yet the problem you have is not related to Oracle DB pre-req. There's also another option for installing Oracle DB: Download the rpm instead of zip. Much easier, but you don't control paths etc during installation.