osxfuse not compatible with MacOS Catalina

[beaurepair]

Just update to the MacOS 10.15 (Catalina) Developer Preview and FUSE now reports it doesn't work!
I'm running v3.8.2 but can't update (running the latest versions gets an error that the package is incompatible with this version of MacOS)

[eskimo]

Tried to modify the build scripts and force it to compile, but even after getting it to compile it doesn't seem to work. Seems like it's gonna need some extra work.

[bfleischer]

FUSE needs to be updated for every major macOS update. I'm working on it. However, Apple made it a lot harder this time.

[andreasgal]

Can you explain?

[Hamid-Najafi]

Can you explain?

is there any mount_ntfs in Catalinas sbin ?

[tholu]

Thanks for your work @bfleischer ! Can you tell us some details?

[mcafaro]

Per Apple, kernel extensions must now run in userspace:

DriverKit and user space system extensions
Previously many hardware peripherals and sophisticated features needed to run their code directly within macOS using kernel extensions, or kexts. Now these programs run separately from the operating system, just like any other app, so they can’t affect macOS if something goes wrong.

[bfleischer]

@mcafaro That's simply not correct or at least not the full story. With macOS 10.15 Apple is introducing DriverKit, which is a replacement for IOKit kernel extensions, only IOKit kernel extensions. But FUSE ist not based on IOKit. Instead it uses the BSD VFS API of the kernel. This is a completely different kernel subsystem. There is no BSD VFS API replacement in user space in macOS 10.15.

By the way, FUSE allows you to write file systems that are already running in user space. That's exactly what Apple has done for IOKit drivers now. However, FUSE on macOS has supported this for more decade now.

[mcafaro]

@bfleischer My mistake then. I thought that's what you may be referring to with the comment "Apple made it a lot harder this time."

[atc07]

@beaurepair Do you have any date when you think FUSE may be updated for Catalina?

[stonespirit]

@bfleischer @beaurepair
When can you update the OSXFuse to support MacOS 10.15? Thanks

[beaurepair]

@atc07 @stonespirit I am in now was associated with this. I just reported the issue.

[DiegoGiovany]

FUSE needs to be updated for every major macOS update. I'm working on it. However, Apple made it a lot harder this time.

Can I help in some way? Thanks for your work man !!!

[bfleischer]

I've patched most incompatibilities I could find. The issue I'm working on right now is the installer plugin (for loading the kernel extension and making sure the user allows it) being broken. This looks like a bug in Catalina but I cannot be sure.