Re: How to disable system update notifications? Don't want marshmallow till its stable ...
Thanks, best answer I've heard on what to do. IMHO.
You're welcome, there's no hurry to upgrade as the update is always there waiting for you to decide whether is worth it or not (the way notifications are sent during first week... looks like they're trying to force the upgrade on users, I don't like it at all).
I upgraded twice on two different Moto G 2015 and I had to revert back to 5.1.1 also twice... I suggest reading as much as you can on how Internal/External storage is managed by Marshmallow and the bugs the upgrade brings, maybe it's not worth the trouble since it doesn't even include a real "Doze" feature for the battery, actually the battery is better on 5.1.1, but that's just my experience... there's controversy whether Marshmallow is really worth it or not on the Moto G 2015.
Also, please consider uninstalling SD Maid - Pro Unlocker, as far as I can see you don't need them for anything here, update notifications go away in some days and you will always have it ready anyways in settings - about device - system update. You don't need to force stop important system services.