This custom ROM requires a custom recovery.
If you don't have a custom recovery for your Nexus 6 then head over here and come back after installing the TWRP recovery:
TWRP custom recovery and rooting guide for Google Nexus 6
WARNING:
Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data.
Before proceeding further you may consider backing up your all data.
Please visit the Disclaimer page below to agree with the risks involved and proceed before flashing this ROM to your phone:
ROM Disclaimer link
Installing custom ROM requires a custom recovery to be installed on your device, which may VOID your warranty and may delete all your data.
Before proceeding further you may consider backing up your all data.
Please visit the Disclaimer page below to agree with the risks involved and proceed before flashing this ROM to your phone:
ROM Disclaimer link
Installing RASTAPOP ROM based on CyanogenMod 12:
Make sure that you have the TWRP custom recovery for Nexus 6 installed.Then you have to get the RASTAPOP ROM zip file over here:
RASTAPOP Custom ROM download link
SuperSU ROOTing package v2.27 by chainfire
This ROM does not contain Google applications like Gmail, drive, maps etc. so download the below GApps zip package.
Google Apps recovery flashable zip download link
Consider backup your OLD ROM before installing this new ROM.
STEP 1:
Do a Factory Reset/Wipe Data if you are coming from the STOCK LOLLIPOP ROM.
If you have any other ROM based on CyanogenMod then this STEP can be SKIPPED.
STEP 2:
Copy the ROM, GApps and SuperuserSU package to your phone.
STEP 3:
Format System and wipe cache.
DO NOT WIPE YOUR INTERNAL STORAGE.
STEP 4:
Install the ROM, Gapps and superuser recovery flashable zip packages using the custom recovery.
STEP 5:
Reboot your phone to enjoy the ROOTed RASTAPOP ROM on your Google Nexus 6 phone.
[Rastapop ROM features]
Xda-Developers