However, it may require manual actions at certain steps of installation. Now the script will automate the process of installing macOS Catalina on Virtualbox. Install the Xcode command line developer tools when you see the prompt on the screen.Open Terminal app in macOS High Sierra or the host OS and run the following commands in the order.Then extract the ZIP file to “ macoscatalinavirtualbox” folder on desktop. Download Alexander’s macOS Virtualbox script from Github, here.Get the Catalina offline installer to your Mac’s Applications folder, and MacOS ISO for Virtualbox (optional).Download and install Virtualbox for Mac here, and the extension pack, here.Virtualbox lets you install and run macOS Catalina as a guest on your Mac if you follow the steps below. The following tutorial is useful for those who already have High Sierra on their Mac but unable to upgrade to Mojave and Catalina due to hardware limitations. However, most of the Mac users can use High Sierra on their system unless it is aged. Virtualbox 6 has an inbuilt profile for installing macOS up-to High Sierra 10.13 if you have the ISO file. Install macOS Catalina 10.15 on High Sierra using VirtualBox for Mac Here is an alternative way to install macOS Catalina 10.15 on High Sierra Mac using Virtualbox. That method requires you to install macOS on a separate partition, and you will get the option to boot into Catalina from startup-screen.

If you are one of them, we have already have a post on installing Catalina on the older Macs when it reports that it can’t be installed. People who can’t afford a new Mac for the cost and many other reasons are now left with the option to continue using High Sierra. However, the MacOS Catalina has some unique hardware requirements it can run only on Apple devices built after 2012. Apple usually gives software upgrades for the Mac hardware for a long time.

Update mac sierra to catalina