Android 5.0 is a new age for rooting on Android. Google's latest security enhancements require more hackery to circumvent and the Nexus 9's 64-bit software complicates matters even further. Still, after just a few hours, Chainfire has updated SuperSU to work on the Nexus 9, but there are a few extra steps.

The nature of root on Android 5.0 might make the CF-Auto-Root tool trickier to get working, so for the time being this is a manual process. Here's the gist of it.

enable oem unlocking in Android's developer options

fastboot oem unlock

fastboot boot inject.img

fastboot flash boot patched.img

The necessary files are available on Chainfire's site, but be aware v2.18 of SuperSU is a custom build for the Nexus 9. It should not be flashed on any other device. As usual, use caution when flashing stuff to your tablet. At least there's a factory image now that will fix most of your mistakes.

[+Chainfire]