After that, the amount of space needed is dependent on the type of installation you’re performing: a clean install or an upgrade install. Storage Space: You’ll need about 6.5 GB of space just to download the macOS Catalina installer. A Complete List of Catalina Compatible Macs.You can find a full list of supported Macs in the Rocket Yard guide: The lone exception is the 2010-2012 Mac Pro, whose graphics cards don’t meet Catalina requirements. Supported Macs: Most Macs from 2012 or later support macOS Catalina. The two primary causes are attempting to install on a Mac that Catalina doesn’t support, or trying to install Catalina on a Mac with limited storage space. It may be that the installation won’t start, it seems to freeze during the installation, or it never seems to complete.

This is the most basic of Catalina installation errors it simply won’t install. With backups out of the way, let’s take a look at some of the common and not-so-common macOS Catalina installation issues you may run into: macOS Catalina Won’t Install If you need a storage solution to handle your backups, Other World Computing has a large selection of storage options you can choose from. If it does get your Mac going again, remember to back up your Mac before you go any further.

If you’ve run into an issue and you didn’t first perform a backup, then with any luck, one of our tips will get you back on track. The most important of these is to back up your Mac before you start the installation process so that you can recover from any installation issues that may arise.

You should also take basic steps to ensure you can recover from any install issues you may come across. Even so, it’s a good idea to review our Rocket Yard guides for a clean install of macOS Catalina as well as an upgrade install of Catalina. Installing a new version of the Mac OS is generally a fairly pain-free process this trend continues with macOS Catalina.

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