So it looks like you didn't have any hard disk errors and there is some filesystem issue TiVo can't fix in your current state.
The next step I would have gone to when I was going through this was to figure out where the SuperHeader for MFS is stored and try to manually edit it back to ebbafeed.
If you can live with the reimaged drive (losing your shows) that would be the quickest way to get back to a working unit.
Do the mfscopy in winMFS and do NOT expand at the end of the copy (you might as well enter 1024 for the swap space). I'm assuming the original drive you are using didn't have 11.0k software, so you should then place the 2TB drive in the tivo and let it upgrade to 11.0k/m, then when that is done, put the drive back in the PC and do mfsadd answering the question to allow it to expand beyond 1TB. Do the SuperSize also to get some extra space.
Last edited by sfhub; 10-05-2013 at 06:53 PM.