diff --git a/.travis.yml b/.travis.yml
index 08c19ead..4011ec98 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -32,10 +32,10 @@ matrix:
       dist: trusty
 
 before_install:
-  - .travis/install_salt "${TRAVIS_OS_NAME}"
+  - .travis/install_salt -F -c .travis -- "${TRAVIS_OS_NAME}"
 
 install:
-  - .travis/configure_salt
+  - .travis/setup_salt_roots
 
   # For debugging, check the grains reported by the Travis builder
   - sudo salt-call --id="${SALT_NODE_ID}" grains.items
diff --git a/.travis/configure_salt b/.travis/configure_salt
deleted file mode 100755
index 85dadcb4..00000000
--- a/.travis/configure_salt
+++ /dev/null
@@ -1,15 +0,0 @@
-#!/usr/bin/env sh
-
-configure_salt () {
-    set -o errexit
-    set -o nounset
-
-    sudo mkdir -p /etc/salt
-    sudo cp .travis/minion /etc/salt/minion
-
-    sudo mkdir -p /srv/salt
-    sudo cp -r . /srv/salt/states
-    sudo cp -r .travis/test_pillars /srv/salt/pillars
-}
-
-configure_salt "$@"
diff --git a/.travis/install_salt b/.travis/install_salt
index 49d4d604..8d59a8d0 100755
--- a/.travis/install_salt
+++ b/.travis/install_salt
@@ -1,15 +1,9 @@
 #!/usr/bin/env sh
 
-install_salt () {
-    set -o errexit
-    set -o nounset
-
-    if [ "$#" -lt 1 ]; then
-        printf >&2 "usage: $0 os_name\n"
-        exit 1
-    fi
-    OS_NAME="$1"
+set -o errexit
+set -o nounset
 
+install_salt () {
     # Ensure that pinned versions match as closely as possible
     if [ "${OS_NAME}" = "linux" ]; then
         printf "$0: installing salt for Linux\n"
@@ -28,4 +22,46 @@ install_salt () {
     fi
 }
 
-install_salt "$@"
+configure_salt () {
+    printf "$0: copying Salt minion configuration from ${TEMPORARY_CONFIG_DIR}\n"
+    sudo mkdir -p /etc/salt
+    sudo cp "${FORCE_FLAG}" -- "${TEMPORARY_CONFIG_DIR}/minion" /etc/salt/minion
+}
+
+OPTIONS=$(getopt 'c:F' "$@")
+
+eval set -- "${OPTIONS}"
+
+TEMPORARY_CONFIG_DIR=""
+FORCE_FLAG=""
+OS_NAME=""
+
+while true; do
+    case "$1" in
+        -c)
+            shift
+            TEMPORARY_CONFIG_DIR="$1"
+            shift
+            ;;
+        -F)
+            FORCE_FLAG="-f"
+            shift
+            ;;
+        --)
+            shift
+            break
+            ;;
+    esac
+done
+
+if [ "$#" -lt 1 ]; then
+    printf >&2 "usage: $0 [-c <config_dir> [-F]] [--] os_name\n"
+    exit 1
+fi
+
+OS_NAME="$1"
+install_salt
+
+if [ -n "${TEMPORARY_CONFIG_DIR}" ]; then
+    configure_salt
+fi
diff --git a/.travis/setup_salt_roots b/.travis/setup_salt_roots
new file mode 100755
index 00000000..b7f24dc0
--- /dev/null
+++ b/.travis/setup_salt_roots
@@ -0,0 +1,12 @@
+#!/usr/bin/env sh
+
+set -o errexit
+set -o nounset
+
+setup_salt_roots () {
+    sudo mkdir -p /srv/salt
+    sudo cp -r . /srv/salt/states
+    sudo cp -r .travis/test_pillars /srv/salt/pillars
+}
+
+setup_salt_roots "$@"
diff --git a/Vagrantfile b/Vagrantfile
index dbfc7604..01f2f922 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -44,7 +44,7 @@ Vagrant.configure(2) do |config|
       machine.vm.synced_folder File.join(dir, ".travis/test_pillars"), pillar_root
       machine.vm.provision :salt do |salt|
         salt.bootstrap_script = '.travis/install_salt'
-        salt.install_command = node[:os] # Pass OS type to install_salt script
+        salt.install_args = node[:os] # Pass OS type to install_salt script
         salt.masterless = true
         salt.minion_config = '.travis/minion'
         # hack to provide additional options to salt-call