Update rooted Nexus 4

[AC Question]

I have a rooted and unlocked Nexus 4 running clockwork mod recovery 6.0.1 and KitKat 4.4.4. My question is: how do I update to android 5.0.1 ( as I have a notification to download it)?

I have downloaded it several times and tried to install it ( with no success ).

Also, if I update will I lose root access and unlock on my phone?

Thanks much for any and all help.

Rob