it works in ubuntu! But here's the caveat- do NOT download the blockchain zip or you will be stuck at that "0" again... just let it download .... if you already downloaded the blockchain (like I did) then you need to delete it in ubuntu with the sudo rm witness_node_data_dir to delete that folder .. run steem ./steemd ctrl c to close it... go to steem/programs/steemd with the cd command then nano config.ini to reconfigure that.. ctrl o ctrl x then go back to the steemd directory and run steem again and it should start building