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APFS

Where did all that free space go on my APFS disk?

The volume should only be half full, but installers and other software complains there’s insufficient free space. What to do.

April 9, 2020 Macs, Technology

File Integrity 3 : Where to store digests?

To check the integrity of important documents, we’re going to calculate their SHA256 digests. But where should those be stored if HFS+ and APFS don’t have a suitable attribute?

April 8, 2020 Macs, Technology

File Integrity 2 : Which digest?

If macOS can’t do it, how should we check the integrity of important files? Use a checksum, or a hash function? And which?

April 6, 2020 Macs, Technology

File Integrity 1 : Why bother?

We take for granted that our files remain uncorrupted, but know that isn’t always true. How can we fix or even detect such changes?

April 3, 2020 Macs, Technology

Last Week on My Mac: Backing up the future

Time Machine supported Time Capsules, which generated revenue which was lost nearly 2 years ago. How could Apple replace it and fund further Time Machine development?

March 15, 2020 Macs, Technology

When should you upgrade from an older macOS?

Now is a good time to re-evaluate which version of macOS your Macs are running. In the next […]

March 12, 2020 Macs, Technology

Catalina Boot Volumes

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macOS Catalina is the first version of macOS which boots not from a single volume, but from two: […]

January 23, 2020 Macs, Technology

Time Machine: 8 Preventing problems

Why you should always protect backup storage with a UPS. Should you also rebuild its directories every month? And when to archive rather than back up.

January 14, 2020 Macs, Technology

Last Year on My Mac: Explanations required

What’s the point of impressive Finder illusions when users can’t rely on your explanation of how to erase a disk? Apple’s problems of 2019 considered.

December 29, 2019 Macs, Technology

Last Week on My Mac: Flaws in re-installing Catalina

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Follow Apple’s instructions for a clean re-install, and you’ll probably hit an error, and be left floundering in Recovery mode with an unbootable system.

December 22, 2019 Macs, Technology

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