I have clear recollection of the responses to my article, where I wrote down, that the MorphOS CD starts with
boot /pci/cd boot.img
in the OpenFirmware prompt, that it's alien, and not Amiga at all. (On a side note I fear there will be no real Amigas anymore.)
The OS4 pre-release install guide seems fair enough to me, and I'm glad that the overall acceptance is better than my article's a year or more ago.