Rooting S5 SM-G900W8

Hello All

I want to root my S5 I have tried Towelroot.com and i have downloaded App, once i press make it rain I get error This phone isn't supported.

I have Canadian version SM-G900w8
Android 5.00
Baseband Version G900W8VLU1BOc2

Is there a way to root without triggering KNOW
Which version of CyanogenMod I can use?