OpenZFS on OS X

lundman wrote:"zpool version" will tell you what is running.

If this is referring to my question about version numbers (from Monterey), here's what I get (this is from installing 2.1.6RC1 on Monterey a couple of days ago):

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zfs-macOS-2.1.6-1
zfs-kmod-2.1.99-784_g0610e5f87

I'm not quite sure what is going on there, because I did the install process multiple times - and rebooted at least once where there was no OpenZFS installed (I got popups saying the drives were an unrecognized format). But I'm guessing that's not what I should be seeing.

You can try to just: "sudo rm -rf /Library/Extensions/zfs.kext/"
but the best, most sure-fire way, is to boot recovery, open Terminal and run
kmutil trigger-panic-medic --volume-root /Volumes/<YourVolumeName>

which will clean the 3rd party kexts. Then reboot normally.