While installing Oracle Forms and Reports 11gR2 (18.104.22.168.0) from a Mac (OS/x Mountain Lion) the following error occurred executing the runInstaller installation script:
$ ./runInstallerStarting Oracle Universal Installer…Checking Temp space: must be greater than 270 MB. Actual 40478 MB PassedChecking swap space: must be greater than 500 MB. Actual 4094 MB PassedChecking monitor: must be configured to display at least 256 colors>>> Could not execute auto check for display colors using command /usr/bin/xdpyinfo. Check if the DISPLAY variable is set. Failed <<<<Some requirement checks failed. You must fulfill these requirements beforecontinuing with the installation,Continue? (y/n) [n] y
I have a remote session from my mac using terminal. To export the display, I typed ssh -Y user@servername.
I have upgraded my O/S to Mountain Lion a couple of days ago. So I though that might be the cause. I tried to manually start X11 and I received the following message:
click on the continue button and get redirected to the following URL: About X11 and OS X Mountain Lion explaining X11 is no longer part of the O/S and that I should use XQuartz from now on.
download and Install XQuartz and there you go!
You can now continue with the rest of the Install via the Installer GUI.