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Volume Group

Ventura volume layout

Updated charts of containers and volumes on boot volume groups for Ventura, with details of cryptexes and what they do.

October 25, 2022 Macs, Technology

Boot disk layout in macOS Monterey

In Monterey, these haven’t changed much since Big Sur. However, those small differences are significant, particularly on M1 Macs.

December 16, 2021 Macs, Technology

Just like that: the Finder’s failed trick with APFS

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When you try ejecting a single volume of a bootable volume group on an external disk, other volumes are also ejected even though you chose to keep them mounted.

December 6, 2021 Macs, Technology

Where’s my Data volume? Navigating boot volumes in macOS 10.15, 11 & 12

The split startup volumes in Catalina, Big Sur and Monterey can be disorientating. Here’s how to find your way in the Finder and Terminal.

September 7, 2021 Macs, Technology

What isn’t changing in macOS Monterey

macOS 12 Monterey promises consolidation and improvement, even truth and reconciliation perhaps. But Shortcuts and Universal Control promise strongly.

June 12, 2021 Macs, Technology

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

Last Week on My Mac: Intricacies of the boot disk

Boot disk volume layout is intricate in Big Sur. M1 Macs lose the EFI partition on their internal SSDs and gain two more for APFS. Contents of /System/Volumes has also changed.

January 10, 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

Wrangling file paths in Catalina and Big Sur

Volume layouts are fairly straightforward until you have two or more bootable systems with Volume Groups. Details and advice for those with macOS 10.15 or 11.

November 9, 2020 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

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