With the backup recommendation out of the way, let’s get started with the error messages.Ĭould Not Write Installation Information to Disk You can find a large number of external enclosures, drives, and SSDs, as well as a portable and easily-carried-with-you Envoy Pro EX high-performance USB 3 or Thunderbolt bus-powered SSD storage. 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. 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. 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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