Did you convert minefield to tcz yourself? It's one of those that requires more than just the conversion to work.
If you did, try downloading the tcz. I just tested on a plain 2.7 that it still works.
$ md5sum /mnt/sda2/tce/maria/minefield.tcz
Same one I was using prior, from the public repository.
I was reviewing the list of extensions I posted above and
noted the graphics one with the kernel revision number
isn't among them; that hasn't been installed. My system
has a hardware dependency on the graphics extension,
and apparently attempting to run minefield unmasks
the problem. Or so I'm conjecturing (can't test this atm).
My whole theory discounts hardware dependencies; I
didn't think it mattered what I evolved back into the
system, in which sequence.