Create an image of OS
Hello,
I have a late 2012 mac mini running OS X 10.10.1.
I want to upgrade to OS X 10.12 because its old hardware and I´m not sure the latest OS X will work properly.
Is it posible to choose the upgrade version or does it allway have to be the latest?
Can i make an image to boot from and go back to OS X 10.10 if the latest version does not work well?
thank you for your help