Hello,
I am a newbie in Linux and I installed Redhat Linux Enterprise 5 on my machine. After that I wanted to install a software, but when I run #install.ksf, installation terminated and the install.log file displayed the following:
Error: Can't open display! Environment variable 'DISPLAY' must be defined.
Help needed. Thanks.
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You maybe don't require to locate the DISPLAY variable, it should be set automatically in your ssh session. Try connecting to markov (if that’s where you installed maestro) with "ssh -X", and then type "xclock". If you clock appearing on your machine is seen, X-forwarding must be functioning and maestro should also work. Please confirm that you remove your DISPLAY setting in your login script.
Don’t locate $DISPLAY variable manually. Use -X or -Y flag with ssh such as ssh -Y [email protected]
qsub -I -X <and other -l and -q flags>
And clearly if it wants a display it implies you will run interactively, hence the -I flag.
If still doesn't work, make sure that you don't have a firewall preventing you displaying back onto your desktop.
