Many thanks for this tutorial. I setup a brand new machine with a new SSD and things appear to be working. However I get a bunch of entries (attached) that popup just before Clover lets me choose where to boot from.
I don't recall doing anything special re APFS, disk utility seems to report my SSD as an APFS volume, but I'm well aware I'm not fully understanding this new file system.
Should I be worried about the attached error messages? I am happy to re-install things again, this is a new machine designed initially for testing...but if I do that would like to know where I went wrong and what to do differently!
Thanks in advance.