Go back --> [wiki:Documentation] --> [wiki:Documentation/orbit-pxe Orbit-PXE] == Imaging using Orbit-PXE == When you try to image a node as in the following example {{{ imageNodes 1,1..2 baseline-2.1.ndz }}} the Orbit-PXE node gets loaded first (see [wiki:Documentation/orbit-pxe/loading Orbit-PXE Loading]). The nodehandler then tries to query the frisbee server to see if any frisbee daemons are running and serving the desired image. It does this by issuing an http GET to the following URL: {{{ http://frisbee:5012/frisbee/status }}} Should there be an instance of a frisbee daemon serving the specified deamon the details will be provided in the results. Here is an example of a response from the frisbee server to this query: {{{ ?xml version='1.0'?> 50.0 224.0.0.2 }}} If no ports are serving this image the nodehandler then asks the frisbee server to start serving the image. It does this by issuing an http GET to the following URL: {{{ http://frisbee:5012/frisbee/getAddress?img=baseline-2.1.ndz }}} and obtains the status once again to determine the address and the port. On the frisbee server you would see processes similar to the following, servicing the desired image: {{{ root 5392 3691 0 19:10 ? 00:00:00 /opt/frisbee/bin/frisbeed -i 10.11.0.40 -m 224.0.0.2 -p 7000 -W 50000000 /export/orbit/image/tmp/node-1-2-sb8-timestamp.ndz root 5393 5392 0 19:10 ? 00:00:00 /opt/frisbee/bin/frisbeed -i 10.11.0.40 -m 224.0.0.2 -p 7000 -W 50000000 /export/orbit/image/tmp/node-1-2-sb8-timestamp.ndz root 5394 5393 0 19:10 ? 00:00:00 /opt/frisbee/bin/frisbeed -i 10.11.0.40 -m 224.0.0.2 -p 7000 -W 50000000 /export/orbit/image/tmp/node-1-2-sb8-timestamp.ndz }}} Once the multicast address and port are obtained the nodehandler issues the following command to the nodeagent through TCP: {{{ S 10.18.1.2 LOAD_IMAGE 224.0.0.2 7000 /dev/hda }}} Upon reception the nodeagent will run the respective frisbee client commands to load the image. Bellow is an example of processes you would see running on the node when being imaged: {{{ 79 root 68912 R frisbee -i 10.11.1.1 -m 224.0.0.2 -p 7000 /dev/hda 80 root 68912 S frisbee -i 10.11.1.1 -m 224.0.0.2 -p 7000 /dev/hda 81 root 68912 D frisbee -i 10.11.1.1 -m 224.0.0.2 -p 7000 /dev/hda 82 root 68912 S frisbee -i 10.11.1.1 -m 224.0.0.2 -p 7000 /dev/hda }}} Once done the nodehandler will ask the node to shut itself down using: {{{ shutdown -h now }}}