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What is the current status for the Linux kernel's support for APFS or HFS+ (filesystems used by MacOS)? Does it support write, journaling etc?

I saw Is an Apple File System (APFS) driver for linux available or in progress? but the responses there mostly deals with FUSE-solutions. I am, for performance reasons¹, interested in kernel based solutions.

¹ I am gonna run it on an embedded device with a slow CPU, low memory etc.

d-b
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  • Personally, that seems a lower priority than a Linux driver that can operate with Apple's SSD devices (the "soldered-in" variety). No reasonable possibilities for installing Linux on a modern MacBook until this is done. – Seamus Mar 16 '21 at 09:16

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I formatted an external SSD as APFS, copied files from a MacBook onto it, and Dolphin in Kubuntu 21.10 mounts and opens the SSD no problems. The folders are locked and you need to be root to access them. There's a Dolphin context menu add-on called "Open as Root". (Configure Dolphin > Context Menu > Download New Services). Right-click a folder and Open as Root and you have full access to the external APFS hard drive.

Gerard Buzolic
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  • the question is about **kernel** driver, are you sure that you're not using FUSE driver? There's no kernel driver for APFS yet – phuclv Jul 09 '23 at 04:17