The latest packages for Ubuntu are published in the saltstack PPA. Add the repository to your system, import the PPA key, and refresh the package data with the following 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 -
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
Debian based systems will launch the daemons right after package install, but you may need to make changes to the configuration files in /etc/salt (see the configuration files), such as:
After making any configuration changes, re-start the affected daemons (or use 'stop' and 'start' as needed). E.g.:
sudo /etc/init.d/salt-minion restart
sudo /etc/init.d/salt-master restart
sudo /etc/init.d/salt-syndic stop
sudo /etc/init.d/salt-syndic start