The Mac OS is in a.zip format so you will need to extract the file first. The reason why we uploaded this here is to keep everything in one location. I will be uploading some older versions of Mac OS suitable for older macbooks here. Lets get on with the Mac OS Sierra Download. Apple also notes that you can't install a version of macOS on top of a later one. You can't go back. You can, if you really needed a hobby, wipe the Mac and start again installing that older macOS.
Old Mac Os
Apple used to have a fantastic application called OSX Server (now called MacOS Server) which allowed you to run a full server from any OSX computer. A server can allow you share files, run your own email or web server, remotely connect in to your office etc. OSX server was particularly powerful running on a Mac Mini. With OSX Mojave Apple killed off OSX server, but it is still possible to download an older version from Apple that still works. Here's how.
You will need access to two Macs to do this.
Firstly you will need a Mac running an older version of OS X. This is the Mac you will run OSX server on. I used El Capitan but any version prior to Mojave will work.
If you try to ‘purchase' OSX server on this older OS it will say that MacOS Server is not compatible with the older OS. The only way to purchase Server is to be running Mojave. So you will need access to a mac running OSX Mojave to make the actual purchase.
Once you have purchased Server you can then download the older version to your older OSX.
1. Purchase a new version of OSX server.
On the Mojave OSX computer login to the App Store and purchase a new version of OSX Mojave. You don't need to download it. You can cancel as soon as it starts to download.
2. Download the older version of Server
Mac hard drive on windows 10. Now use the computer with the older version of OSX and login to the same iTunes account. Cricut setup for mac. In the App Store click on the little tag that says ‘Purchased.' MacOS Server will now appear and you can download an older version that works with your older OS.
Install Older Mac Os X On New Mac
You should now have a working version of OSX server that includes all the features like VPN, FTP, Mail server and everything else that Apple removed from the Mojave version of OSX server.
