How to use fdsymbol with LuaLaTeX

My question is related to the fdsymbol packet. I would like to the font in combination with the Fedra Serif B font, but on LuaLaTeX. Consider this MWE:

documentclass{scrbook}

usepackage{fontspec}
usepackage{fdsymbol}

% setmainfont{FedraSerifB-Book} % works for "normal" text

letmathdollarundefined % Required in order to compile
begin{document}
[
    sum_{i=0}^n i = frac{n (n+1)}{2}
]
end{document}

For the math, the default Computer Modern font is used instead of fdsymbol. This question is very similar to Using fdsymbol and fontspec where XeLaTeX and mathspec are used instead.

Is there a way to get this working on LuaLaTeX?