Originally Posted by jitz_
on 4) adb shell /data/local/atvc/root.sh
is says no such folder or file !
As of Oct 10, 2012: Google has patched this vulnerability starting with JRO03U. That is to say, this works on versions of ICS and JB from ITL41D to JRO03O inclusive. It will not work for JRO03U or newer
Its from the post itself.
For first one, the error you get is 'cause the fie isn't copied in the previous step.
Most importantly, E ships with the patched kernel, older exploits won't work. You need to find another in case you wish to root without unlocking.