Lualatex: cannot use bold cambria

Question

I use ArchLinux and TeXLive 2022, LuaHBTeX 1.15.0, with cambriab.ttf cambriai.ttf cambria.ttc cambriaz.ttf located in /usr/local/share/fonts/c

\documentclass{article}
\usepackage{fontspec}
\setmainfont{Cambria}

\begin{document}
    abcd \textbf{abcd}
\end{document}

This produces:

and a warning

Font shape `TU/Cambria(0)/b/n' undefined
(Font)  using `TU/Cambria(0)/m/n' instead.

PS: I have installed all 5 Cambria (R, B, I, BI, Math) fonts from Windows.

Answer 1

On macOS we have:

H-MacBook:Python voss$ luafindfont Cambria
  No.        Filename Symbolic name                                Path
   1.     Cambria.otf     cambria  /Users/voss/Library/Fonts/Cambria/
   2.    CambriaB.ttf     cambria  /Users/voss/Library/Fonts/Cambria/
   3.    CambriaI.ttf     cambria  /Users/voss/Library/Fonts/Cambria/
   4. CambriaMath.otf cambriamath  /Users/voss/Library/Fonts/Cambria/
   5.    CambriaZ.ttf     cambria  /Users/voss/Library/Fonts/Cambria/

The symbolic names are not correctly set inside the font files: LuaTeX is unable to find italic, bold, ... However, in my installation there is no BoldItalic, the reason why I have to fake it:

\documentclass{article}
\usepackage{fontspec}
\setmainfont{Cambria.otf}[
    BoldFont=CambriaB.ttf,
    ItalicFont=CambriaI.ttf,
    BoldItalicFont=CambriaI.ttf,
    BoldItalicFeatures={RawFeature={embolden=5}}
]

\begin{document}
    abcd \textbf{abcd} \textit{abcd}
    \textbf{\textit{abcd}}
\end{document}