The latest packages for Ubuntu are published in the saltstack PPA. If you have the add-apt-repository utility, you can add the repository and import the key in one step:
sudo add-apt-repository ppa:saltstack/salt
add-apt-repository: command not found?
The add-apt-repository command is not always present on Ubuntu systems. This can be fixed by installing software-properties-common:
sudo apt-get install software-properties-common
Alternately, manually add the repository and import the PPA key with these commands:
echo deb http://ppa.launchpad.net/saltstack/salt/ubuntu `lsb_release -sc` main | sudo tee /etc/apt/sources.list.d/saltstack.list
wget -q -O- "http://keyserver.ubuntu.com:11371/pks/lookup?op=get&search=0x4759FA960E27C0A6" | sudo apt-key add -
After adding the repository, update the package management database:
sudo apt-get update
Install the Salt master, minion, or syndic from the repository with the apt-get command. These examples each install one daemon, but more than one package name may be given at a time:
sudo apt-get install salt-master
sudo apt-get install salt-minion
sudo apt-get install salt-syndic
Now go to the Configuring Salt page.