

This article explains in detail how Big Sur changes the layout of its boot Volume Group, and provides handy reference charts. However, if you think from the outset that you might need to turn it off, you should ask yourself whether Big Sur is a good choice at all. This article explains more about it, and how you can disable that when necessary. One of the major changes in Big Sur is its new Signed System Volume, which greatly increases the security of macOS system files.

If you still want to be an early adopter, then this article gives practical advice on what you should do to prepare for the upgrade. This article looks at some of the issues involved, with particular reference to Big Sur. Many experienced Mac users like to leave it a while before committing their main, production Mac to a new version of macOS. Big Sur is wonderful and ready to go, but don’t rush it. They’ll spare you a lot of frustration and maybe even having to reformat your internal storage and re-install your previous system. While that may well be a great choice, before you do, please take a careful read through the following articles here. Later today, you’ll be enthused by Apple’s event to upgrade your Mac to Big Sur.
