It's possible that you might need to patch MorphOS so it will run on the AmigaOne/Teron. Details are very sketchy, but there is a chance that the "April" Articia fix used by the Pegasos includes a hardware fix for a DMA problem in the VIA southbridge. On the AmigaOne/Teron this fix is done in software (in Linux and AmigaOS). So, if this is the case (let me stress that real info is thin on the ground) you'd need a patch to run Morphos on the AmigaOne (since the Pegasos has the patch built into the hardware). I doubt the patch would be terribly huge though, and since the patch is part of open-source Linux all you need is a semi-competent programmer to port it.
Does anyone here know if this is correct? the only source of info I have on this is this fragment of one of Alan's postings to the AmigaOne mailinglist (in it he's talking about the April chip/circuit board):
From the hints dropped it seems that they have just come across the fairly well known VIA IDE-DMA problem. This occurs rarely, but reproducably, and - as with all PC's using the same VIA southbridge core, it is properly handled in the IDE driver. It will be in OS4, and in the PPC Linux kernal.
Anyone here have any other info to add to this? I've looked around but found no hard info on what April actually does - just more or less educated guesses.