wiki:Documentation/Short/LoadImage

Load an Image

  1. Before we begin using the nodes, it's a good idea to check their status first. This is done with the omf stat command.

    omf stat

    This omf command is used to display the power status of the node/domain.

    Individual nodes are identified in the output of stat command by their fully qualified domain name (FQDN). This establishes their "coordinates" and the "domain" to which they belong. Nodes in different domains typically can NOT see each other. Node can be in 1 of 3 states:

    POWEROFF Node is Available for use but turned off
    POWERON Node is Available and is on
    NOT REGISTERED Node is not Available for use

  2. It is recommended that the node be in the POWEROFF state prior to any experiment process. If the node is in the POWERON state you can use the omf tell command to get the node into the off state.

    omf tell

    OMF command to control the power state/reset the nodes.

    The commands are: on, offh (equivalent to pulling out the power cord), offs (software shutdown), reboot (software reboot) and reset (hardware reset).

  3. Once node set is on an POWEROFF state, load an image with omf load command

    omf load

    Load command is used to put an image onto the hard disk of the node.

    Two important arguments are TOPOLOGY describing the set of nodes one wishes to image , and !IMAGE specifying the name of the image one wants to load the nodes with. If the imaging process does not does not finish within the default timeout period, that period can be increase by using the -o flag (e.g. -o 1600). Typical command to load both nodes of sandbox 1 with the baseline image would look like:

    If the node is in the NOT REGISTERED state, you may need to wait for it to recover the POWEROFF state (it some times requires a few moments for the services to sync up). If the node takes more than 60 seconds to come out of the NODE NOT AVAILABLE state please report it to an administrator.
Last modified 11 years ago Last modified on Oct 18, 2013, 11:01:28 PM
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