ROS on Intel Galileo - root pwd

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Hi everyone!

I am trying to work with ROS on an Intel Galileo Board. I followed the instructions as explained here: http://wiki.ros.org/IntelGalileo/Inte... . I did manage to compile and everything went ok and the board bootet. The problem is when trying to login. It will not accept the user "root" either with empty pwd or with "root" as pwd. Does anybody has an idea why? I also tried reseting the root pwd using an arduino sketch but I cannot connect to USB port of the board. I am using ROS Hydro, host computer has Ubuntu 12.10 installed and the version of Yocto Linux image is v1.0.0

Thanks in advance!