wget -q https://releases.hashicorp.com/serf/0.8.1/serf_0.8.1_linux_amd64.zip
sudo apt-get -yq install unzip
unzip serf_0.8.1_linux_amd64.zip
sudo mv serf /usr/local/bin/
sudo cp serf-agent.conf /etc/init/
sudo start serf-agent

wget -q https://dl.bintray.com/mitchellh/serf/0.6.0_linux_amd64.zip
sudo apt-get -yq install unzip
unzip 0.6.0_linux_amd64.zip
sudo mv serf /usr/local/bin/
sudo cp serf-agent.conf /etc/init/
sudo start serf-agent

--- 
+++ 
@@ -1,6 +1,6 @@
-wget -q https://releases.hashicorp.com/serf/0.8.1/serf_0.8.1_linux_amd64.zip
+wget -q https://dl.bintray.com/mitchellh/serf/0.6.0_linux_amd64.zip
 sudo apt-get -yq install unzip
-unzip serf_0.8.1_linux_amd64.zip
+unzip 0.6.0_linux_amd64.zip
 sudo mv serf /usr/local/bin/
 sudo cp serf-agent.conf /etc/init/
 sudo start serf-agent
Fix vagrant setup by changing serf download location
