Help understanding "install", will propose patch to manual

[Web Clark (RR)]

I am working to understand the install command.  After very careful
reading I see that it is really very simple and have used it successfully,
but there are two areas I do not understand.

Once I understand, I plan to propose a modified version of the
"slightly more detailed" paragraph to this list for review.  I believe
that fairly minor changes can make a very big difference.  Once my
proposal has been confirmed and "polished" by the list's feedback,
I will submit a patch.

But first I need to understand.

*** First question concerns option 'd':

With option 'd', does this mean:

    [A] That Stage 1 will search all drives for the stage2_file

or  [B] That Stage 1 will look on the drive in the same physical
       configuration position (e.g. (hd0) vs. (hd2) etc.) as the
       drive that stage2_file was on when "install" was run.

or  [C] That there is some way that Stage 1 can positively identify
       the drive that stage2_file is on, and the drives are simply
       checked until it is found.  (If "C" is true, please explain how
       Stage 1 positively identifies the drive, since as far as I know
       there is no universal drive serial number.)

or  None of the above - please try to explain in other words.

*** Second question concerns 'p' and the parameters that follow.

The alternatives I can figure out are:

   [A] 'p' is simply optional and extraneous, where usage of
       config_file is inferred from whether stage2_file is a Stage 1.5
       or a Stage 2, and real_config_file is looked for and used as
       appropriate.

or  [B] That there are two alternative command line structures:

   [B-1] 'p real_config_file' for the case where stage2_file is a real
         Stage 2 and it needs to be patched with real_config_file

   [B-2] 'config_file real_config_file' for the case where stage2_file
         is a Stage 1.5 and config_file is the Stage 2.  Stage 1.5
         "stage2_file" needs to be patched with the location of the
         Stage 2 "config_file", which in turn needs to be patched with
         the location of "real_config_file".
    
or  None of the above - please to to explain!

None of my alternatives above accounts for the wording
"modifies it with the values of the partition stage2_file was
found on (for 'p')".  This bothers me, please explain also.

Thank you for your help.