8.14.01 HP Utility Meter User's Guide (June 2009)

1. Start a terminal session on the Utility Meter system. HP recommends that you use SSH for security and
X11 display forwarding.
2. Log in as root in the terminal window.
3. Ensure the DISPLAY environment variable is set so that an X11 application is locally displayed. For
example, you can execute the following command and the xclock application should appear:
# /usr/bin/X11/xclock &
If the X11 application is not displayed properly, you must set the DISPLAY environment variable to
the IP address of the system you started the terminal window. For example, if you started the terminal
window on 10.x.x.x, set the environment variable:
# export DISPLAY=10.x.x.x:0.0
After you have set the DISPLAY environment variable, ensure an X11 application can be locally
displayed.
4. Execute the following command:
# /opt/meter/bin/umGUI
The Utility Meter GUI Main Window should appear.
Figure 3-1 Utility Meter GUI Main Window
NOTE: If the Utility Meter GUI does not appear and you see this error:
"Exception in thread "main" java.awt.HeadlessException:
No X11 DISPLAY variable was set, but this program performed an operation which requires it. ..."
you did not set the DISPLAY environment variable.
If you see this error appear:
42 Performing Utility Meter Tasks