Hi there!
I'm following the official guide:
Arcade cores cannot be launched using MGL files. If you want to make a shortcut to an arcade core elsewhere in the menu, you'll instead have to symlink (symbolic link) it there.
For example, either through SSH or the console (press F9 from the menu):
ln -s /media/fat/_Arcade/dummy.mra /media/fat
ln -s /media/fat/_Arcade/cores /media/fat
So for example I've created a folder /media/fat/_test
Inside this folder I type: ln -s /media/fat/_Arcade/Poly Play.mra
and then ln -s /media/fat/_Arcade/cores
.
Symlinks are created and if I test them with cat 'Poly Play.mra'
and cat /media/fat/_Arcade/cores
the file and the dir are found.
So, why when I try to launch the Poly Play.mra symlink from the MiSTer menu it goes back to menu instead to launch the core?