product

    A 1- to 8-character product mnemonic that uniquely identifies a
    loadable image. For user-written images, this should typically
    contain the string _LOCAL_.

 image

    The file name of the system loadable image you want to add. A
    file name is the only value you can specify for this parameter.
    Do not specify a device, directory, file type, or wildcard
    characters.