cannot write unrecognized or unsupported architecture

    Facility: EFI$CP, The OpenVMS EFI Partition Control Program

    Explanation: This application does not support writing a
    bootblock for the specified architecture; the specified
    architecture is not recognized or not supported.

    User Action: Please select a supported architecture. If the
    architecture is supported, please confirm the minimum necessary
    software revision of OpenVMS is present for the particular
    architecture.