Copy the entire enigma2 folder from the MIO and install it in the Mini. This clones the receiver except for plugins, and other things that are not in the enigma2 folder. Simply copy the Whole enigma2 folder from /etc in the MIo to an accessible place for FileZilla, then Telnet to the Mini and have FileZilla ready to transfer the copied enigma2 folder into the Mini.
In the Mini telnet terminal, type init 4 to stop enigma2, delete the enigma2 folder from the Mini, and transfer the copied enigma2 folder from the MIo into the Mini. When finished, type init 3 in the terminal for the Mini and you are done. This should restore 80-90 percent or more, depending on your situation.