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Big Sur boot volume layout

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Detailed account of disk, volume and folder layouts on Big Sur’s boot disks, complete with roadmaps which are downloadable as PDFs.

January 13, 2021 Macs, Technology

Boot disk layout on Intel and M1 Macs: High Sierra to Big Sur

Diagrams of the layout of volumes on boot disks for macOS 10.13 to 11, covering both Intel and M1 models.

January 9, 2021 Macs, Technology

Boot volume layout

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A complete guide to the structure and layout of APFS startup disks from High Sierra to Big Sur (Intel), together with tear-out PDF charts.

September 16, 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

Last Week on My Mac: More than adventurous

The third successive macOS upgrade brings fundamental changes which could so easily have resulted in catastrophe. How did Apple pull it off?

October 13, 2019 Macs, Technology

Time Machine: past, present and future

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Coming up to its 12th birthday, Time Machine backups have changed a great deal, but still rely on a feature almost unique to HFS+. What is their future?

June 10, 2019 Macs, Technology

Last Week on My Mac: Homage to Catalina

Was WWDC a damp squib after all? With only one new unaffordable Mac announced, and more dreadful privacy dialogs on their way, you might think so.

June 9, 2019 Macs, Technology
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