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snapshot

How to roll your M1 Mac back to Big Sur 11.1

macOS updates sometimes don’t work out right. What can you do to revert to the previous release? Did I hear you mention snapshots?

February 9, 2021 Macs, Technology

How did that update eat so much free disk space?

Have you checked how much free space is on your startup volume after the last update? Do you wonder where it has all gone?

December 16, 2020 Macs, Technology

Inside the file system: 4 Summary and references

Disk structure diagrammed for comparison, from the partition table, to HFS+ and APFS volumes, with further references.

October 10, 2020 Macs, Technology

Inside the file system: 3 APFS containers and volumes

What you need to know about the APFS file system, its containers and volumes, so you can understand errors and how to repair them.

October 8, 2020 Macs, Technology

What to do when a macOS update goes wrong (macOS 10.13-11.0)

Whether it’s a full macOS update, or a small Security Update, it can go wrong. Here’s a systematic guide to the solutions you can try to restore normal function.

September 29, 2020 Macs, Technology

Last Week on My Mac: Is macOS becoming unmaintainable?

Provision of maintenance procedures and tools is at the heart of software engineering, but not in macOS.

August 30, 2020 Macs, Technology

Time Machine and snapshots

Time Machine has been using snapshots since High Sierra. How can it then use them to make backups to APFS volumes in Big Sur?

July 29, 2020 Macs, Technology

Big Sur may yet live up to its name

Here are several good reasons that Big Sur will need more storage space than previous versions of macOS.

July 14, 2020 Macs, Technology

When the Finder’s arithmetic fails with an error of 139 TB

T T Read More

Trying to discover the effective size of a snapshot proves baffling, particularly when the Finder claims it’s almost astronomical.

July 13, 2020 Macs, Technology

Last Week on My Mac: Control-Space

Updating Big Sur can cause the storage required by the system to double in size. Snapshots appear to be the cause. What’s the solution?

July 12, 2020 Macs, Technology

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