Nada, que no hay forma. Me pone lo siguiente:
2013-03-28 22:04:00 (23,8 KB/s) - «motoshare.tgz.1» guardado [1846109/1846109]
ubuntu@ubuntu:/tmp/share$ tar xvf motoshare.tgz
adb
busybox
eu.chainfire.supersu.apk
pwn
su
ubuntu@ubuntu:/tmp/share$ sudo chown root:root pwn
ubuntu@ubuntu:/tmp/share$ sudo chmod 6755 pwn
ubuntu@ubuntu:/tmp/share$ sudo /tmp/share/adb kill-server
ubuntu@ubuntu:/tmp/share$ sudo /tmp/share/adb shell /storage/rfs0/pwn
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
/system/bin/sh: /storage/rfs0/pwn: not found
ubuntu@ubuntu:/tmp/share$