http://www.swiss-scalability.com/2014/12/install-hdp-22-on-ubuntu-1404-trusty.html
在新加节点上运行
sed -e "s/14.04/12.04/g" -i /etc/*-release
install hdp 2.2 on ubuntu 14.04
原文：http://www.cnblogs.com/yanghuahui/p/4861619.html
