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If you don’t have a backup system in place, I highly recommend investing in one before you install a new version of macOS. Having a Time Machine backup or a clone of your current system can be a lifesaver. Some of the installation issues we’re going to mention can cause loss of data. Installation Issues Commonly Seen with macOSīefore we get too far along, I want to point out the obvious: don’t install a new version of the Mac operating system without having a current backup.
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With any luck, you may be able to either correct the issue, allowing you to finish the installation, or prevent the problem from occurring in the first place.
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In this guide, we will look at some of the installation problems that tend to occur with new releases of the Mac operating system.
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