Improve description of subvolumes and containers#171
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Conan-Kudo
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Mar 9, 2025
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Can you please rebase this and also do a proper DCO Signed-off-by statement?
This isn't a hack; it's the same approach taken by other filesystems with subvolumes. Mention this explicitly. Explain that containers are exposed as disks on their own right. A conclusion was made based on this fact, but it was not explicitly called out. Signed-off-by: Hugo Osvaldo Barrera <hugo@whynothugo.nl>
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Conan-Kudo
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Mar 9, 2025
| `diskN` (`N` >= 1) could be a disk image or an external disk, but more likely is an *APFS container*. This is a hack that Apple came up with to represent subvolumes. The "partitions" within such a disk aren't real partitions, they just represent volumes within one APFS container. The container itself exists within a physical partition in `disk0`. That means that for APFS operations, for example, `disk0s2` and `disk1` could mean the same thing, the former referencing the container by its physical partition, and the latter by the virtual (*synthesized*) disk number. | ||
| `diskN` (`N` >= 1) could be a disk image or an external disk, but more likely | ||
| is an *APFS container*. Each *APFS container* contains multiple subvolumes, | ||
| much like btrfs or zsh partitions contain multiple subvolumes. The "partitions" |
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This isn't a hack; it's the same approach taken by other filesystems with subvolumes. Mention this explicitly.
Explain that containers are exposed as disks on their own right. A conclusion was made based on this fact, but it was not explicitly called out.