Since there are bound to be bugs in early versions of any new OS, you might want to avoid the hassle of having it as your default OS.You are looking for a way to boost the performance without untouching the internal drive. Your Mac (Mostly Mac Mini or iMac) is built upon on a HDD and it runs slowly.Uninstalling and rolling back to an older version of macOS is time-consuming and a tedious process that is prone to errors, so you may not want the hassles that come with it. You might want to try macOS Catalina without having to uninstall and roll back to Mojave or High Sierra if you change your mind.There are several reasons why you might not want to disturb your current installation, whether it's Catalina or an older version of macOS. After all, if you're upgrading to macOS Catalina, you want your Mac to boot to it all the time, don't you? Not necessarily. Now, the big question is why you don't want to install macOS Catalina on your main hard drive. The good news is that external SSD is much cheaper than before and the price gap is much smaller. For permance consideration, external SSD is much better becaus of faster reading and writing speed. And this priciple also applies to macOS Catalina. MacOS can be installed on an external storage device by default, such as HDD, SSD or USB flash drive. Why Installing macOS Catalina on External SSD? This article shows you how to set up a new SSD with macOS Catalina that you can boot from. However, since Apple initiated a relatively new partition scheme (APFS) with macOS High Sierra, the process is slightly different than with older versions of macOS. When the 2023 version of macOS becomes available to download in October 2023 you should be able to get the installation files via Software Update or the Mac App Store.By Petty Madison | Last Updated: Dec.28, 2020Ĭan you install macOS Catalina on an external SSD connected to your Mac? Yes, it's definitely possible. Whether you want to get the macOS Ventura or the latest beta installation files the process to be similar to that detailed below. This step will depend on whether you want to run a macOS beta, a full version of macOS, or even an older Mac OS X. Now you will see that your external storage has been renamed with the name you choose and it will be ready for you to install the macOS on it – but there is something else you need to do first.
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