I can use URW Garamond as follows:

\documentclass[12pt]{article}

\usepackage{parskip}
\usepackage[urw-garamond]{mathdesign}

\begin{document}

\thispagestyle{empty}

\textbf{Bold text} \\
Normal text

\end{document}


But I want to only use URW Garamond for bold text. I want to do that because EB Garamond doesn't have a good bold typeface at the moment, and I prefer how EB Garamond looks in general. So, ultimately, I want to call the fonts like the following:

\documentclass[12pt]{article}

\usepackage{parskip}
\usepackage{fontspec}
\setmainfont[Numbers=Lining,BoldFont={TeX Gyre Pagella Bold}]{EB Garamond}

\begin{document}

\thispagestyle{empty}

\textbf{Bold text} \\
Normal text

\end{document}


TeX Gyre Pagella Bold is used as an example because I can't find the name of URW Garamond in TeX Live 2012. I've tried GaramondNo8, URW Garamond, and many variations of those without any luck. TeXLive's getnonfreefonts -l indicates that "GaramondNo8 (URW)" is installed, and I can use the font with the mathdesign package. But finding its name for fontspec is tough. How can I figure out what its name is, or alternatively, if that is not the problem, how can I load it with fontspec?

If it makes any difference, I installed EB Garamond via the CTAN package.

-
The URW Garamond font available with getnonfreefonts is Type1 and not OpenType. –  egreg Apr 13 '13 at 15:57
Ah, I had not noticed that. Seems an OpenType version is available. –  Ben Trettel Apr 13 '13 at 16:06

“EB Garamond” is an OpenType font, but “URW Garamond” available for TeX Live with the getnonfreefonts script (executable in Windows) is in Type1 format. With fontspec you can only use a True-/OpenType vresions of this font. You can download the whole URW fonts collection in Truetype format from your favorite source, cf. https://www.google.com/search?q=%22urwfonts-8.71.tar.bz2%22&newwindow=1 (note the resource linked from GhostPCL is dead: it tries as far as I remeber to link to a CTAN mirror, but the according directories were removed quite a long time ago) or a special build only for URW Garamond No.8 from https://github.com/rbrito/urw-garamond/tree/master/orig/ttf.