Linux-macOS-Administration-Notes.md

@@ -1025,6 +1025,41 @@ or
 diskutil list
 ```
 
+<a href="building-grub-on-macos-from-source"></a>
+
+#### Building GNU GRUB on macOS from source
+
+1. Clone the grub source
+```
+git clone git://git.savannah.gnu.org/grub.git
+```
+2. Clone **objconv** from GitHub
+```
+git clone git@github.com:vertis/objconv.git
+```
+> GRUB will not compile using Xcode tooling out of the box, thus the dependency for **objconv**
+3. Build **objconv**
+```
+g++ -o objconv -O2 src/*.cpp
+```
+4. Put **objconv** in the `$PATH`
+5. Build GRUB to support **x86_64** and **efi**
+```
+cd /path/to/src/grub
+mkdir grub-build
+../configure --prefix=/path/to/put/the/grub/binary --target=x86_64 --with-platform=efi
+make
+make install
+```
+> **make** should be run the **grub-build** dir and **NOT** the grub git source root.
+
+**Optional**
+6. Specify a font to use with GRUB, on macOS most system fonts can be found in **/Library/Fonts**, that said, choose a **.ttf** font for the below command.
+```
+/path/to/grub-mkfont -o share/grub/unicode.pf2 /Library/Fonts/Times\ New\ Roman.ttf
+```
+
+
 <a href="working-with-automountd"></a>
 
 #### Working with automountd