Prøvd å slått av SIP?
For å slå av
Turn off your Mac (Apple > Shut Down).

Hold down Command-R and press the Power button.
Keep holding Command-R until the Apple logo appears.

Wait for OS X to boot into the OS X Utilities window.

Choose Utilities > Terminal.Enterxcsrutil disable.Enter reboot.
Så slette filen når den booter

For å slå på,
Turn off your Mac (Apple > Shut Down).

Hold down Command-R and press the Power button.

Keep holding Command-R until the Apple logo appears.Wait for OS X to boot into the OS X Utilities window.Choose Utilities > Terminal.Enterxcsrutil enable.Enter reboot.

Source: https://www.macworld.co.uk/how-to/ho...tless-3638975/