I googled disabling rootless and was easily able to find what you are looking for. You might try that rather than waiting hours or days for someone to reply with an answer. This is just a suggestion, if you would rather continue waiting for someone to post an answer you are more than welcome to do that.
Method 1 (simpler but may not exist in the final release):
Run this in Terminal and reboot: sudo nvram boot-args="rootless=0"
Method 2 (Apple recommended):
Boot into Recovery (start up holding down down Command-R until the Apple logo appears), and select "Security Configuration" from "Utilities" on the menu bar. Uncheck "Enforce System Integrity Protection", click "Apply Configuration", click "Apply" on the resulting prompt, and restart. Rootless will now be disabled.
I googled disabling rootless and was easily able to find what you are looking for. You might try that rather than waiting hours or days for someone to reply with an answer. This is just a suggestion, if you would rather continue waiting for someone to post an answer you are more than welcome to do that.