Ran the installer again (on macOS 11.2.1) 14:08:33.145059 -0700 defaultđ4:08:33.145059-0700 kernelmanagerd validating extension at /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext 14:08:33.146804 -0700 infođ4:08:33.146804-0700 kernelmanagerdĜollision: replacing Kext io. v2053.20 in executable kext bundle io. at /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext 14:08:34.360673 -0700 defaultđ4:08:34.360673-0700 kernelmanagerd checking bundle path /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext for Kext io. v2053.20 in executable kext bundle io. at /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext 14:08:34.655024 -0700 defaultđ4:08:34.655024-0700 kernelmanagerd validating extension at /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext 14:08:34.656632 -0700 infođ4:08:34.656632-0700 kernelmanagerdĜollision: replacing Kext io. v2053.20 in executable kext bundle io. at /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext 14:08:34.728418 -0700 defaultđ4:08:34.728418-0700 kernelmanagerd checking bundle path /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext for Kext io. v2053.20 in executable kext bundle io. at /Library/Filesystems/macfuse.fs/Contents/Extensions/11/macfuse.kext There is no notice in the Security preference pane to approve it again (it is a silent blocking of the system extension), install macFuse 4.0.2 over 4.0.5 and it loads fine (don't even need to restart for macFuse to load again).ĭo you have a public bug number (or note where Apple has confirmed the bug) for the system extension loading bug? (strange is that only 2 systems extensions are affected by the bug while others are not, macFuse is one of them)įound this in the console (when I tried to boot a Win 10 guest VM) Then randomly macOS blocked macFuse from loading with no visible notice. I had already approved the extension and restarted and it had been loaded fine. Win 10 20H2 guest crashes with macFuse blocked, while dev insider branch builds would just be in a blue screen loop (installed macFuse 4.0.2 over 4.0.5 and that allowed both to boot normally, XP kinda booted with macFuse 4.0.5 blocked by macOS but some apps were unstable) VirtualBox 6.1.18 has an older version of macFuse in the installer (a non macOS 11 compatible version OSXFuse 3.10.4) so I do custom to not install the older version from Dec 2019` Oracle does not fully list in the user manual what all macFuse is used for A previous versions VirtualBox I had to revert to macFuse 4.0.2 for any Windows guest VM to load. VirtualBox uses macFuse for many of the guest OSes now, macFuse 4.0.5 worked with 6.1.16 just fine, after 6.1.18 it did not. Follow the instruction and then reboot your Mac again. ![]() macOS will prompt you again to approve loading the kernel extension. Then reboot your Mac and try to use macFUSE 4.0.5. This disables loading third-party kernel extensions until you approve them again. Kmutil trigger-panic-medic -volume-root /Volumes/System Then run the following command in Terminal after booting into the recovery environment: In the meantime, try the following workaround: Install macFUSE 4.0.5. Apple classified this issue as critical and is working on a fix. Apple re-wrote the Kext Manager component, that is responsible for loading kernel extensions in macOS 11. MacOS is blocking macFuse even after it is approvedĪre you prompted to approve the kernel extension again? If this is the case, you are running into a bug in macOS 11. If macOS is not loading the 4.0.5 kernel extension, how can macFUSE 4.0.5 cause issues with VirtualBox? ![]() MacFUSE does not interfere with VirtualBox in any way.
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