'''[wiki:GEC16Agenda/WiMAX-Tutorial/Coop/02 Previous]'''

== Creating and Loading a Disk Image ==

To prepare this experiment, we loaded a baseline image onto a node at NYU Poly.


> Try it yourself another time: To load a baseline image onto a node, e.g. node9 at NYU Poly, run [[br]]
> {{{omf load -i baseline.ndz -t omf.witest.node9}}}
[[br]]

Then we installed all the applications on the node and saved the disk image.

> Try it yourself another time: To save a disk image from a node, e.g. node9 at NYU Poly, run [[br]]
> {{{omf save -n omf.witest.node9}}}
[[br]]

When the image saving process concluded, it reported that the disk image had been saved and gave the name of the image. Now, when we want to run this experiment, we can load this disk image onto the nodes:

 {{{omf load -i gec16-coop.ndz -t omf.witest.node4,omf.witest.node6,omf.witest.node13}}}

== Clearing Experiment Settings ==

In addition to loading a fresh disk image, additional steps must be taken to restore the wireless environment to its default state. These commands are run from the console on witest to
reset all of the base station settings:

{{{
wget -qO- "http://wimaxrf:5052/wimaxrf/bs/default"
wget -qO- "http://wimaxrf:5052/wimaxrf/bs/restart"
}}}



'''[wiki:GEC16Agenda/WiMAX-Tutorial/Coop/04 Next]'''