The process description works but is directionally correct but hard to follow. I suggest the following description of the process: 1. Open System P...

Thanks. This is what i've done and needed to do, because of a security update... thanks again.

Is cloning still needed to upgrade a MacPro5,1 tot High Sierra? Even using SoftRaid Lite 5.7.2? Using a SoftRaid volume as startup disk. Thanks, ...