Those files are part of the twrp recovery ramdisk and can't be deleted. They are for when the option to root with supersu is selected in twrp (LP and older). The disappear when you boot into android.
Sent from my D6603 using XDA-Developers mobile app
And any other advice on flashing SuperSU from anyone would be much appreciated. I couldn't boot after flashing 2.65.
A friend from these forums said he flashed 2.65 as well, but he did this (below) first to have systemless root before flashing the zip:
In TWRP File Terminal, enter the command:
Check Systemless with:
Make sure the terminal returns SYSTEMLESS=true
I'm actually a little confused with all of this. There is SuperSU Stable, Experimental, Beta. The experimental thread is talking about systemless install. Beta is supposedly systemless but it's not mentioned in the OP. The changelogs show systemless here and there in this thread. From what I deduced v2.65 is systemless (see some changes in the changelog regarding systemless) and you can just flash it - but then I had a bootloop. So it might only be 2.65 beta that's systemless - but then again, the beta and stable have the same time reference in their filenames (20151226141550), and this beta is found in the experimental thread. When it's systemless I apparently shouldn't need to run any commands in terminal as it is automated? Then I'm reading about flashing 2.62-3 (don't know if it's just a simple flash or what) and then update (another moto user claimed it worked) to who knows what (update=simple flash on top - I'm not sure, I've been using a RAZR and a custom ROM with built in root). I stopped using SuperSU when it gave me bootloops on my RAZR - think around December last year.
I am looking to do a systemless root though. I think when I flashed it, it probably wasn't systemless. Sorry, I'm in that initial phase of getting up to speed and learning with a new device.
TIA!!!! --> As I read in the one supersu thread...