Required changes for the voltha base image to get it to work

Change-Id: I582665904da499dcbfbcd95ca7fb8d77053b8478
diff --git a/ansible/scripts/bootstrap_ansible.sh b/ansible/scripts/bootstrap_ansible.sh
index 7602afa..183ac4a 100755
--- a/ansible/scripts/bootstrap_ansible.sh
+++ b/ansible/scripts/bootstrap_ansible.sh
@@ -18,6 +18,7 @@
 set -e
 
 echo "Installing Ansible..."
+rm /var/lib/dpkg/lock
 apt-get install -y software-properties-common
 apt-add-repository ppa:ansible/ansible
 apt-get update
diff --git a/vagrant-base/Vagrantfile_base b/vagrant-base/Vagrantfile_base
index c969bd7..9d0dd94 100644
--- a/vagrant-base/Vagrantfile_base
+++ b/vagrant-base/Vagrantfile_base
@@ -11,7 +11,7 @@
 
   config.vm.define "voltha-base" do |d|
     d.ssh.forward_agent = true
-    d.vm.box = "ubuntu/xenial"
+    d.vm.box = "v0rtex/xenial64"
     d.vm.hostname = "voltha"
     d.vm.network "private_network", ip: "10.100.198.220"
     #d.vm.network "public_network"