Exceptions while running application on headless linux

smartgupta · October 20, 2010, 9:08am

I want to install executable file(Demo.bin) on vMA4.0 virtual machine using ssh. Same can be installed on all other Linux/Unix box. but when I am trying to run it on vMA,I am getting the following error--

Could you please advise me how to approch this problem and how to resolve it?

Corona688 · October 21, 2010, 3:51am

Well, the error's clear enough: Your server's headless, but the program for some reason demands an X server. If running an X server on the server is impractical, you may be able to forward it to your own PC through SSH forwarding or allowing it to access it over the internet i.e. export DISPLAY=my.ip.address:0.0

smartgupta · October 21, 2010, 9:51am

When I am trying it by forwarding it by export DISPLAY:my.ip.address:0.0, I am getting following error--

Exception in thread "main" java.lang.UnsatisfiedLinkError: /tmp/Demo/jre/lib/i386/xawt/libmawt.so: libXext.so.6: cannot open shared object file: No such file or directory
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.load0(Unknown Source)
at java.lang.System.load(Unknown Source)
at java.lang.ClassLoader$NativeLibrary.load(Native Method)
at java.lang.ClassLoader.loadLibrary0(Unknown Source)
at java.lang.ClassLoader.loadLibrary(Unknown Source)
at java.lang.Runtime.loadLibrary0(Unknown Source)
at java.lang.System.loadLibrary(Unknown Source)
at sun.security.action.LoadLibraryAction.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.NativeLibLoader.loadLibraries(NativeLibLoader.java:38)
at sun.awt.DebugHelper.<clinit>(Unknown Source)
at java.awt.Component.<clinit>(Unknown Source)

Please provide your valuable suggestions.

Corona688 · October 26, 2010, 2:51pm

Install libXext, I suppose.

pludi · October 26, 2010, 3:06pm

Every X11 client, which includes Java's AWT, requires the X11 libraries in order to communicate with the server. So you'll have to install libXext, along with any dependencies that might have.