完全删除旧版本的elasticsearch并安装新版本

Question

There're a lot of articles on the internet regarding new installation of elasticsearch. But I already have 1.x version of elasticsearch running. I want to remove this first and install a newer version. How do I do this? I had used something like this to install the old one:

sudo -s  // use as admin

#public key
wget -O - http://packages.elasticsearch.org/GPG-KEY-elasticsearch | apt-key add -

# edit /etc/apt/sources.list and add
deb http://packages.elasticsearch.org/elasticsearch/1.0/debian stable main
deb http://packages.elasticsearch.org/logstash/1.3/debian stable main

sudo apt-get update
sudo apt-get install elasticsearch

Answer 1

Why don't you simply extract the gzip version of elasticsearch and extract its contents. That's the recommended way. This way you can also keep different versions if you need.