Question [Q] [Root 4.4.X] Pie for Motorola devices - Linux - proly mac 2 step ?s

So in the [Root 4.4.X] Pie for Motorola devices thread (thanks to jcase) on page 32 (thanks to dubyajaysmith):

http://forum.xda-developers.com/moto...2771623/page32

found this gem for Mac users. But I'm an old noob (ran CM on GalaxyS forever using Windows tools) to using adb on Mac. Tried to follow instructions but apparently not getting it right. I can get root (partial) but it doesn't survive "soft reboot" (which I'm not sure which of several methods is correct).

TiBuPro seems to work (sorta). Root Checker Basic says root access.

return from Terminal had a couple fails?:

xx-mbp:~ x$ chmod 700 mxr.sh && ./mxr.sh
5083 KB/s (1538138 bytes in 0.295s)
99 KB/s (192 bytes in 0.001s)
rm failed for /data/local/atvc/blop.asec, No such file or directory
rm failed for /data/local/atvc/blop, No such file or directory
pie by jcase
want to buy me pie? paypal-> jcase@cunninglogic.com

Root not retained after “soft reboot” (holding power down for 5 sec - is this correct “soft reboot”?… or reboot from TiBuPro? (nope)… or?)

So did adb ./mxr.sh - returned:
4345 KB/s (1538138 bytes in 0.345s)
28 KB/s (192 bytes in 0.006s)
rm failed for /data/local/atvc/blop.asec, No such file or directory
rm failed for /data/local/atvc/blop, No such file or directory
mkdir failed for /data/local/atvc/dalvik-cache, File exists
pie by jcase
want to buy me pie? paypal-> jcase@cunninglogic.com

After TBP reboot still lost root, adb ./mxr.sh or chmod 700 mxr.sh && ./mxr.sh
again:

platform-tools d$ chmod 700 mxr.sh && ./mxr.sh
4337 KB/s (1538138 bytes in 0.346s)
33 KB/s (192 bytes in 0.005s)
rm failed for /data/local/atvc/blop.asec, No such file or directory
rm failed for /data/local/atvc/blop, No such file or directory
mkdir failed for /data/local/atvc/dalvik-cache, File exists
pie by jcase
want to buy me pie? paypal-> jcase@cunninglogic.com

so again, not doing something right…

Tried installing ChainFire SU & Xposed Framework, tripping at the Xposed Framework Installer's "Install/Update" Framework (using "classical"), does it's thing, cancel "reboot now" and use "soft reboot" (perhaps this isn't the correct "soft reboot"?) which after reboot leaves root disabled again.

So please forgive wall of text, suspect these fails:

rm failed for /data/local/atvc/blop.asec, No such file or directory
rm failed for /data/local/atvc/blop, No such file or directory
mkdir failed for /data/local/atvc/dalvik-cache, File exists

are the "root" (lol, pun) of trouble...

Can anyone help the helpless here? TIA