diff --git a/hack/after-build/update-generated-protobuf.sh b/hack/after-build/update-generated-protobuf.sh
index 978e6b5983b..ce3ffc46c8f 100755
--- a/hack/after-build/update-generated-protobuf.sh
+++ b/hack/after-build/update-generated-protobuf.sh
@@ -32,7 +32,7 @@ if [[ -z "$(which protoc)" || "$(protoc --version)" != "libprotoc 3.0."* ]]; the
   echo "  https://github.com/google/protobuf/releases"
   echo
   echo "WARNING: Protobuf changes are not being validated"
-  exit 0
+  exit 1
 fi
 
 gotoprotobuf=$(kube::util::find-binary "go-to-protobuf")
diff --git a/hack/after-build/verify-generated-protobuf.sh b/hack/after-build/verify-generated-protobuf.sh
index 0239d480b14..0582c155c9c 100755
--- a/hack/after-build/verify-generated-protobuf.sh
+++ b/hack/after-build/verify-generated-protobuf.sh
@@ -21,19 +21,7 @@ set -o pipefail
 KUBE_ROOT=$(dirname "${BASH_SOURCE}")/../..
 source "${KUBE_ROOT}/hack/lib/init.sh"
 
-# TODO: preinstall protobuf
-if [[ -z "$(which protoc)" || "$(protoc --version)" != "libprotoc 3.0."* ]]; then
-  echo "Generating protobuf requires protoc 3.0.0-beta1 or newer. Please download and"
-  echo "install the platform appropriate Protobuf package for your OS: "
-  echo
-  echo "  https://github.com/google/protobuf/releases"
-  echo
-  echo "WARNING: Protobuf changes are not being validated"
-  # TODO: make error when protobuf is installed
-  exit 0
-fi
-
-APIROOTS=${APIROOTS:-pkg/api pkg/apis/extensions pkg/apis/metrics pkg/runtime pkg/util/intstr}
+APIROOTS=${APIROOTS:-pkg/api pkg/apis pkg/runtime pkg/util/intstr pkg/watch}
 _tmp="${KUBE_ROOT}/_tmp"
 
 cleanup() {
@@ -42,18 +30,24 @@ cleanup() {
 
 trap "cleanup" EXIT SIGINT
 
+cleanup
 for APIROOT in ${APIROOTS}; do
   mkdir -p "${_tmp}/${APIROOT%/*}"
   cp -a "${KUBE_ROOT}/${APIROOT}" "${_tmp}/${APIROOT}"
 done
 
-"${KUBE_ROOT}/hack/after-build/update-generated-protobuf.sh"
+# We would like to use "sudo" when running on Travis and
+# not use "sudo" when running on Jenkins.
+SUDO="sudo"
+sudo -h > /dev/null || SUDO=""
+
+"${KUBE_ROOT}/hack/update-generated-protobuf.sh"
 for APIROOT in ${APIROOTS}; do
   TMP_APIROOT="${_tmp}/${APIROOT}"
   echo "diffing ${APIROOT} against freshly generated protobuf"
   ret=0
   diff -Naupr -I 'Auto generated by' "${KUBE_ROOT}/${APIROOT}" "${TMP_APIROOT}" || ret=$?
-  cp -a "${TMP_APIROOT}" "${KUBE_ROOT}/${APIROOT%/*}"
+  ${SUDO} cp -a "${TMP_APIROOT}" "${KUBE_ROOT}/${APIROOT%/*}"
   if [[ $ret -eq 0 ]]; then
     echo "${APIROOT} up to date."
   else
diff --git a/hack/update-generated-protobuf.sh b/hack/update-generated-protobuf.sh
index 7ca88048998..2f34af74521 100755
--- a/hack/update-generated-protobuf.sh
+++ b/hack/update-generated-protobuf.sh
@@ -37,7 +37,12 @@ function prereqs() {
   KUBE_BUILD_CONTAINER_NAME="kube-build-${KUBE_ROOT_HASH}"
   KUBE_BUILD_DATA_CONTAINER_NAME="kube-build-data-${KUBE_ROOT_HASH}"
   DOCKER_MOUNT_ARGS=(
-    --volume "${KUBE_ROOT}:/go/src/${KUBE_GO_PACKAGE}"
+    --volume "${REPO_DIR:-${KUBE_ROOT}}/cluster:/go/src/${KUBE_GO_PACKAGE}/cluster"
+    --volume "${REPO_DIR:-${KUBE_ROOT}}/cmd:/go/src/${KUBE_GO_PACKAGE}/cmd"
+    --volume "${REPO_DIR:-${KUBE_ROOT}}/Godeps/_workspace/src:/go/src/${KUBE_GO_PACKAGE}/Godeps/_workspace/src"
+    --volume "${REPO_DIR:-${KUBE_ROOT}}/hack:/go/src/${KUBE_GO_PACKAGE}/hack"
+    --volume "${REPO_DIR:-${KUBE_ROOT}}/pkg:/go/src/${KUBE_GO_PACKAGE}/pkg"
+    --volume "${REPO_DIR:-${KUBE_ROOT}}/third_party:/go/src/${KUBE_GO_PACKAGE}/third_party"
     --volume /etc/localtime:/etc/localtime:ro
     --volumes-from "${KUBE_BUILD_DATA_CONTAINER_NAME}"
 	)
diff --git a/hack/verify-generated-protobuf.sh b/hack/verify-generated-protobuf.sh
index 043aa42bd8e..c43bd1b9bcf 100755
--- a/hack/verify-generated-protobuf.sh
+++ b/hack/verify-generated-protobuf.sh
@@ -23,8 +23,6 @@ source "${KUBE_ROOT}/hack/lib/init.sh"
 
 kube::golang::setup_env
 
-"${KUBE_ROOT}/hack/build-go.sh" cmd/libs/go2idl/go-to-protobuf cmd/libs/go2idl/go-to-protobuf/protoc-gen-gogo
-
 "${KUBE_ROOT}/hack/after-build/verify-generated-protobuf.sh" "$@"
 
 # ex: ts=2 sw=2 et filetype=sh