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How to upgrade macOS to High Sierra without filesystem change (HFS+ to APFS)

How to upgrade macOS to High Sierra without filesystem change (HFS+ to APFS)

During the installation of developer and beta versions of macOS High Sierra, user was asked if he/she wants to “upgrade file system to APFS”. With the final (17A365) version of High Sierra, such question is no longer displayed to people with systems on flash-only storage. It is however still possible to avoid filesystem conversion and install High Sierra on HFS+ filesystem, or keep HFS+. This is not a “you should”, it’s a “you can” This howto (hownotto) only shows how…

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APFS vs HFS+: benchmarks on 2017 MacBook Pro with macOS High Sierra

APFS vs HFS+: benchmarks on 2017 MacBook Pro with macOS High Sierra

In July, when I replaced my dated MacBook Air with a shiny new 2017 MacBook Pro, it was my first workstation equipped with a blazing-fast NVMe SSD. At that time Apple was releasing developer and beta versions of their new macOS, High Sierra, which includes APFS – filesystem that is going to succeed an almost 2 decades old Mac OS Extended (HFS+). I did some benchmarks, that while being maybe not that well-thought, showed some disadvanteges of using Apple’s new…

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APFS and HFS+ benchmarks on 2017 MacBook Pro with macOS High Sierra beta

APFS and HFS+ benchmarks on 2017 MacBook Pro with macOS High Sierra beta

This post was written in July 2017 and all benchmarks were made on High Sierra beta 17A306f. You can find benchmarks from macOS High Sierra final here   While writing a post on securing and configuring fresh macOS High Sierra installation (not yet ready), I have made some benchmarks to compare Apple’s new file system – APFS to their almost 2 decades old HFS+ (Mac OS Extended). As I require full disk encryption, I was primarily interested in encryption overhead with APFS….

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