The Saada distribution is packed within an installer which cannot be run on a headless machine. The workaround consist in extacting the Saada stuff on machine operating a display before to move on the headless machine.

  Install Saada on a machine running X-Windows (or the MS Windows equivalent)

 Copy recursively the Saada directory to the target machine (the headless one)

 Update the SAADA_HOME field in SAADA_HOME/bin/saadadb.properties file

You can now work with Saada, but only by using scripts