Step 1 : Create VM ubuntu 14.x (4vcpu, 8GB RAM, 100GB Disk)

Step 2 : Login as a non-root user

Step 3 : Install git

sudo apt-get update
sudo apt-get install git

Step 4 : Git clone devstack project

git clone https://git.openstack.org/openstack-dev/devstack

Step 5: Checkout a stable release Code lines here.

git checkout [release-name/id]

Step 6: Configure neutron before running the setup as by-default devstack does not configure with neutron

Create local.conf file with following contents and keep it devstack folder

[[local|localrc]]
disable_service n-net
enable_service q-svc
enable_service q-agt
enable_service q-dhcp
enable_service q-l3
enable_service q-meta
enable_service neutron

Step 7: Run the installation

cd devstack
./stack.sh