OpenZFS on OS X

I'm finally getting around to installing High Sierra . . . but the uninstall failed. I ran the uninstall script, but everything has ' Permission denied' after it. So I tried adding sudo in front of the uninstall script. And I get this:

rmdir: /Library: Operation not permitted
rmdir: /Library/Extensions: Directory not empty
rmdir: /Library/Extensions/spl.kext: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/MacOS: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/PlugIns: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/PlugIns/KernelExports.kext: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/PlugIns/KernelExports.kext/_CodeSignature: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/Resources: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/Resources/English.lproj: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/_CodeSignature: Directory not empty
rmdir: /Library/Extensions/zfs.kext: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents/MacOS: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents/Resources: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents/Resources/English.lproj: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents/_CodeSignature: Directory not empty
rmdir: /Library/Filesystems: Operation not permitted
rmdir: /Library/Filesystems/zfs.fs: Directory not empty
rmdir: /Library/Filesystems/zfs.fs/Contents: Directory not empty
rmdir: /Library/Filesystems/zfs.fs/Contents/Resources: Directory not empty
rmdir: /Library/Filesystems/zfs.fs/Contents/Resources/English.lproj: Directory not empty
rmdir: /Library/LaunchDaemons: Directory not empty
rmdir: /etc: Not a directory
rmdir: /etc/zfs: Directory not empty
rmdir: /etc/zfs/zed.d: Directory not empty
rmdir: /usr: Operation not permitted
rmdir: /usr/local: Directory not empty
rmdir: /usr/local/bin: Directory not empty
rmdir: /usr/local/lib: Directory not empty
rmdir: /usr/local/libexec: Directory not empty
rmdir: /usr/local/libexec/zfs: Directory not empty
rmdir: /usr/local/libexec/zfs/launchd.d: Directory not empty
rmdir: /usr/local/libexec/zfs/zed.d: Directory not empty
rmdir: /usr/local/share: Directory not empty
rmdir: /usr/local/share/man: Directory not empty
rmdir: /usr/local/share/man/man1: Directory not empty
rmdir: /usr/local/share/man/man5: Directory not empty
rmdir: /usr/local/share/man/man8: Directory not empty
rmdir: /usr/local/share/zfs: Directory not empty
rmdir: /usr/local/share/zfs/zpios-profile: Directory not empty
rmdir: /usr/local/share/zfs/zpios-test: Directory not empty
rmdir: /usr/local/share/zfs/zpool-config: Directory not empty
rmdir: /Library: Operation not permitted
rmdir: /Library/Extensions: Directory not empty
rmdir: /Library/Extensions/spl.kext: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/PlugIns: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/PlugIns/KernelExports.kext: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents/Resources: Directory not empty
rmdir: /Library/Extensions/spl.kext/Contents: Directory not empty
rmdir: /Library/Extensions: Directory not empty
rmdir: /Library/Extensions/zfs.kext: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents/Resources: Directory not empty
rmdir: /Library/Extensions/zfs.kext/Contents: Directory not empty
rmdir: /Library/Extensions: Directory not empty
rmdir: /Library/Filesystems: Operation not permitted
rmdir: /Library/Filesystems/zfs.fs: Directory not empty
rmdir: /Library/Filesystems/zfs.fs/Contents: Directory not empty
rmdir: /Library/Filesystems/zfs.fs/Contents/Resources: Directory not empty
rmdir: /Library/Filesystems: Operation not permitted
rmdir: /Library/LaunchDaemons: Directory not empty
rmdir: /etc: Not a directory
rmdir: /etc/zfs: Directory not empty
rmdir: /etc: Not a directory
rmdir: /usr: Operation not permitted
rmdir: /usr/local: Directory not empty
rmdir: /usr/local/bin: Directory not empty
rmdir: /usr/local/lib: Directory not empty
rmdir: /usr/local/libexec: Directory not empty
rmdir: /usr/local/libexec/zfs: Directory not empty
rmdir: /usr/local/libexec/zfs: Directory not empty
rmdir: /usr/local: Directory not empty
rmdir: /usr/local/share: Directory not empty
rmdir: /usr/local/share/man: Directory not empty
rmdir: /usr/local/share/man/man1: Directory not empty
rmdir: /usr/local/share/man/man5: Directory not empty
rmdir: /usr/local/share/man: Directory not empty
rmdir: /usr/local/share/zfs: Directory not empty
rmdir: /usr/local/share/zfs: Directory not empty
rmdir: /usr/local/share/zfs: Directory not empty
rmdir: /usr/local/share: Directory not empty
Forgot package 'net.lundman.openzfs.1011.pkg' on '/'.

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> ç

files seems to have been removed, but not the directories. I get this from the terminal:

sudo zpool list
Password:
sudo: zpool: command not found

So am I good to go in the High Sierra upgrade?

Should be fine, the only files that are important, are the Extensions/spl.kext and zfs.kext - the rest is run only if you ask them to. Without the kernel components, nothing will happen.

Thank you, lundman.