by Ken Task.
As a follow up ... Mary is mostly correct. However, it's been my experience that how much is converted depends upon what's in the 1.9 backup - or any backup ... including 2.3's to 2.4.
2.4 restores now gets users - which may or may not be needed/desired. That's an improvement.
However, restores may still not get it all ... that's ok! As long as the majority of what was in the course gets there. One still might need to unzip the .zip or the .mbz and get files that don't make the trip.
There is less work and that's good!
You've been using 2.0+ in your messages ... what is version ... exactly!
If you are still having trouble on your server restoring, the offer to use the sos.tcea.org server standbox still stands.
'spirit of sharing', Ken