How to Create and Manage Btrfs Snapshots and Rollbacks on Linux (part 2)
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In "How to Manage Btrfs Storage Pools, Subvolumes And Snapshots on Linux (part 1)" we learned how to create a nice little Btrfs test lab, and how to create a Btrfs storage volume. Now we're going to learn how to make live snapshots whenever we want, and how to roll the filesystem back to any point to any arbitrary point in time. This does not replace backups. But it's a great tool for quickly going back in time to a known good state. If you make a mess, for example a botched upgrade, this is a great way to keep your system up while you figure out what to do.
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