Adds an entry in the system images file SYS$UPDATE:VMS$SYSTEM_
    IMAGES.IDX.

                                 CAUTION

       The SYS_LOADABLE ADD command is not intended for general
       use. Only advanced system programmers should use this
       command.

    Format

      SYS_LOADABLE ADD  product image

1  –  Parameters

 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.

2  –  Qualifiers

2.1    /LOAD_STEP

    Indicates the step of the booting process at which you want the
    image loaded. Valid load steps are INIT (which causes the system
    initialization code to load the image), and SYSINIT (which causes
    the SYSINIT process to load the image).

    If you do not specify a value for the /LOAD_STEP qualifier, it
    defaults to SYSINIT.

2.2    /LOG

       /LOG
       /NOLOG (default)

    Controls whether the SYS_LOADABLE ADD command displays a
    notification after the entry has been added.

2.3    /MESSAGE

    Enables you to specify the text of a message that is displayed
    when the appropriate condition is met (see the /SEVERITY
    qualifier). The default message is "system image load failed".

2.4    /SEVERITY

    Determines how the image load status will affect console output
    and booting progress. You can specify the following values for
    this qualifier:

    Value       Description

    FATAL       If an error occurs loading the image, display the
                error message and BUGCHECK information.
    INFORMATION Display the message and continue processing.
    SUCCESS     Continue even if loading the image produces an error.
                Does not display the message.
    WARNING     If an error occurs loading the image, display the
                error message and continue processing.

    If you do not specify a value for the /SEVERITY qualifier, it
    defaults to WARNING.

3  –  Description

    The SYS_LOADABLE ADD command adds an entry to the system images
    file SYS$UPDATE:VMS$SYSTEM_IMAGES.IDX. You can then process
    this file using the command procedure SYS$UPDATE:VMS$SYSTEM_
    IMAGES.COM. Processing the file with VMS$SYSTEM_IMAGES.COM
    generates a new system images data file that the system uses
    when it boots.

    If the file SYS$UPDATE:VMS$SYSTEM_IMAGES.IDX does not exist, the
    SYS_LOADABLE ADD command creates a new one.