I have rooted my phone using
(in short, it's using SuperSU 2.00)
After some efforts, Root Checker says i am fine. I can get id 0 from adb, and via ssh.
But ... Busybox fails to install.
And if I remount /system RW, and mess in there a bit (like mkdir /system/tmp ), the mess is removed after reboot. Changes are not permanent.
Must I change my su app for superuser mentionned in the FAQ of the section (via recovery) ? Are there things to do before this migration ?
Other possible issues ?
I am used to fully unlocked HTC Sensation, where I changes to /system are easily permanent. But it was done using an exploit, few before HTC allowed rooting officially. Rooted M8 does not seem as much friendly ...
I *really* need busybox to work, and make permanent changes to /system. I am stuck.