How to install second os x on os x?

Question

macOS

Hello everyone!) How to install a second os x on os x? I want to install new os x yosemite on mac, does anyone know how to do it?

Answer 1

With Disk Utility, you need to create another partition (no data will be affected, you will just bite off a piece of disk space). Then download the Yosemite distribution (for example, from Rutracker) and during installation indicate to install on the created partition. In the future, when you reboot, hold down the Option button and a list of partitions from which you can boot will appear.