OK, I've demonstrated that if you set boot-file to '-a' then ofwboot 
will ask for the file name.  What can I tell it to make it boot from 
a different disk than the one it came from?  Will it take an OF 
device path (I can't tell from the error messages)?

Maybe I should be asking where the source code for ofwboot is on the 
web so I can browse it.

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h.b.hotz@jpl.nasa.gov, or hbhotz@oxy.edu