hello friends, because I want to update to Mojave I cloned my Systemharddrive with Carbon Copy Cloner. I had inserted the cloned hardwire to slot 4. After I inserted the cloned hard drive to slot 1 it went well. But after I reinstalled my original hard drive on the first hard drive slot it does not start after I announce with my user id it does not start anymore. The cloned hard drive still works - my old and original ssd hard drive does not. What was my fault? I have installed high Sierra in my mid 2010 with a rx580.