APM 10.7 installer fails to launch on Linux

Document ID : KB000073863
Last Modified Date : 16/03/2018
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Issue:
When launching the APM 10.7 Enterprise Manager installer on linux it fails with the following output

# ./introscope10.7.0.45linuxAMD64.bin
Preparing to install
Extracting the JRE from the installer archive...
Unpacking the JRE...
Extracting the installation resources from the installer archive...
Configuring the installer for this system's environment...

Launching installer...

=======================================================

Installer User Interface Mode Not Supported

Unable to load and to prepare the installer in console or silent mode.

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Environment:
RHEL Linux environments
Cause:
The problem relates to the presence of the DISPLAY system variable - used by X11 environments. If this is set to a location that is not reachable the problem occurs. If it is set to a location where an accessible X11 server is running then the installer continues - in console mode
Resolution:
To resolve this problem if you do not have an accessible X11 environment simply unset the DISPLAY variable and relaunch the installer.

To check if the DISPLAY variable is set enter

# echo $DISPLAY
192.168.101.131:0.0

to clear this

# unset DISPLAY

the echo $DISPLAY should then return nothing