I am watching this latest install attempt and as it is copying all the files to DH1: I see at the top of the screen an error message that my 60mb Boot: partition is too small and that 169mb size is required???
The install completed and I have successfully booted to MorphOS2.4 from my hard drive, so I guess that error message was inaccurate.
The message refers to the first partition being too small for the main bulk of the MorphOS installation. The first 60MB partition (named Boot) is just for the boot.img files (and a few others).
The massage is accurate in this context, and is noted in Jacadcaps installation guide.
Sorry to hear that you lost your OSX installation :-(