Install ElasticSearch on Ubuntu 11.04

es.sh

cd ~
sudo apt-get update
sudo apt-get install unzip curl python-software-properties -y
#sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo add-apt-repository ppa:ferramroberto/java
sudo apt-get update
sudo apt-get install sun-java6-jre sun-java6-plugin -y

wget https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.18.7.tar.gz -O elasticsearch.tar.gz
tar -xf elasticsearch.tar.gz
rm elasticsearch.tar.gz
sudo mv elasticsearch-* elasticsearch
sudo mv elasticsearch /usr/local/share

curl -L http://github.com/elasticsearch/elasticsearch-servicewrapper/tarball/master | tar -xz
mv *servicewrapper*/service /usr/local/share/elasticsearch/bin/
rm -Rf *servicewrapper*
sudo /usr/local/share/elasticsearch/bin/service/elasticsearch install
sudo ln -s `readlink -f /usr/local/share/elasticsearch/bin/service/elasticsearch` /usr/local/bin/rcelasticsearch

#curl http://localhost:9200 

I had to update my elasticsearch to the latest version for it to work and start
https://github.com/downloads/elasticsearch/elasticsearch/elasticsearch-0.19.3.tar.gz

the wget address has changed:

cd ~/
wget https://github.com/flexiondotorg/oab-java6/raw/0.2.6/oab-java.sh -O oab-java.sh
chmod +x oab-java.sh
sudo ./oab-java.sh

Now ES provides deb package, so just download from http://www.elasticsearch.org/download/ and install it.

Then service elasticsearch start should work.