Formatting a fusion drive to APFS before upgrading to Mojavi
It is clear that if you format you drive to APFS rather that convert a HFS+ drive to APFS you will have less problems in the long run. My question is if you have a fusion drive and are upgrading from High Sierra to Mojavi, what are the steps you need to do this. I have 2 superDuper! clones of my High Sierra startup drive. Normally I would just boot from the clone and format the internal drive as an APFS volume. But I it seems I cannot format a fusion drive as APFS from High Sierra!. What is the simplest way to accomplish this task? Let the discussion roll on.