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Take Control of Upgrading to High Sierra
book

Take Control of Upgrading to High Sierra

by Joe Kissell
September 2017
Intermediate to advanced content levelIntermediate to advanced
98 pages
2h 14m
English
Take Control Books
Content preview from Take Control of Upgrading to High Sierra

Back Up Your Disk

If you’ve read pretty much any book I’ve written about the Mac, you know I consider a solid backup plan to be essential for every Mac user. I hope you already perform backups regularly, and if you don’t, this is a perfect time to start.

Regardless of what you do normally (such as using Time Machine or Backblaze), I want to state emphatically that before upgrading to High Sierra, you should create a specific type of backup called a bootable duplicate. That’s an exact copy of everything on your startup volume, stored on another disk in such a way that you could start up your Mac from that other disk and it would behave precisely as it does when you boot from your regular startup volume.

Even though the High Sierra installer doesn’t ...

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Publisher Resources

ISBN: 9781947282988Errata Page