Severe MIgration Assistant problem
I am migrating from a 250Gb SATA drive out of an expired Macbook Pro (old one!) to a new Mac Mini.
Connected the old drive to the mini with a SATA>USB adaptor, and it shows up just fine.
Migration assistant finds it, and (after some time) allows me to select items to migrate.
I then sits "starting up" seemingly for ever - certainly a day or so.
On one occasion it *did* start, and after about a day died, and dumped me back to the normal desktop with only part of the migration complete.