I have a 2010 iMac on 10.12, and thinking about upgrading to a 2018 Mac mini since already have external monitor, speakers, etc. My question is I have spent a lot of time customizing my filesystem to "T", and would prefer to just clone my existing hard drive over (or via Time Machine backup), instead of relying on Migration Assistant that I understand doesn't necessarily copy everything over, which will save a lot of time in recustomizing everything. However, the Mac mini, as I understand it, will only boot 10.14 and nothing earlier, and I cannot first upgrade my iMac to 10.14, since it will only support up to 10.13. Would it work if I clone my iMac drive over to a partition on the new Mac mini, and then from the built in Mac mini 10.14 partition or a bootable USB drive installer etc., run the 10.14 installer to do an upgrade install on the 10.13 partition, and then boot from the newly upgraded partition? I know a clean install is the way to go but I'm just tired of doing them. Thanks for any advice.