Install Koha on Ubuntu 12.04 LTS

#Add the following apt repository

echo deb http://debian.koha-community.org/koha squeeze main | sudo tee /etc/apt/sources.list.d/koha.list

# Get The key
wget  http://debian.koha-community.org/koha/gpg.asc
apt-key add gpg.asc

apt-get update

# Install mysql server

apt-get install mysql-server

# Update and install

apt-get update

apt-get install koha-common