You probably have data from an older ES install. If you're installing a new version and want to keep your older data, you need to go through the upgrade path.
otherwise, if you don't care about your older data and simply want to install the newer version, simply delete the content of /var/lib/elasticsearch
and install the new version.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…