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Booting Data ONTAP at the boot environment prompt

You can boot the current release or the backup release of Data ONTAP when you are at the boot environment prompt.


The boot environment prompt may be ok>, CFE>, or LOADER>, depending on your storage system model.


  1. If you are at the storage system prompt, enter the following command:halt

    The storage system console displays the boot environment prompt.

  2. At the boot environment prompt, enter one of the following commands:
    To boot... Enter...

    The current release of Data ONTAP


    The Data ONTAP primary kernel


    The Data ONTAP backup kernel


    For a FAS900 series storage system, enter boot at the boot environment prompt.

    Note: For more information about commands available from the boot prompt, enter help at the firmware prompt for a list of commands or help command for command details.