Disabled gNMI support in p4vm until it becomes more stable

Change-Id: If2085d5824a2b9d06b249bf8d82d92fd384de5af
diff --git a/tools/dev/p4vm/README.md b/tools/dev/p4vm/README.md
index de9edb7..11cccd3 100644
--- a/tools/dev/p4vm/README.md
+++ b/tools/dev/p4vm/README.md
@@ -88,7 +88,7 @@
 
 ```bash
 cd $ONOS_ROOT/tools/dev/p4vm
-./build-ova.sh
+./export-ova.sh
 ```
 
 This script will:
diff --git a/tools/dev/p4vm/export-ova.sh b/tools/dev/p4vm/export-ova.sh
index 7b94f23..757f94b 100755
--- a/tools/dev/p4vm/export-ova.sh
+++ b/tools/dev/p4vm/export-ova.sh
@@ -15,13 +15,11 @@
     ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no \
     -p ${SSH_PORT} sdn@127.0.0.1 "bash /vagrant/pre-ova-cleanup.sh"
 
-# Wait for VM to power off
-sleep 10
-
-# Make sure VM is not running
-vagrant halt
-
 sleep 5
+vboxmanage controlvm ${VB_UUID} acpipowerbutton
+
+# Wait for VM to power off
+sleep 30
 
 # Remove vagrant shared folder
 vboxmanage sharedfolder remove ${VB_UUID} -name "vagrant"
diff --git a/tools/dev/p4vm/install-p4-tools.sh b/tools/dev/p4vm/install-p4-tools.sh
index f3df6a4..8797707 100755
--- a/tools/dev/p4vm/install-p4-tools.sh
+++ b/tools/dev/p4vm/install-p4-tools.sh
@@ -259,12 +259,15 @@
     git submodule update --init --recursive
 
     ./autogen.sh
-    ./configure --with-proto --with-sysrepo 'CXXFLAGS=-O0 -g'
+    # FIXME: re-enable --with-sysrepo when gNMI support becomes more stable
+    # ./configure --with-proto --with-sysrepo 'CXXFLAGS=-O0 -g'
+    ./configure --with-proto 'CXXFLAGS=-O0 -g'
     make -j${NUM_CORES}
     sudo make install
     sudo ldconfig
 
-    sudo proto/sysrepo/install_yangs.sh
+    # FIXME: re-enable when gNMI support becomes more stable
+    # sudo proto/sysrepo/install_yangs.sh
 }
 
 function do_bmv2 {
@@ -279,7 +282,10 @@
     # Simple_switch_grpc target
     cd targets/simple_switch_grpc
     ./autogen.sh
-    ./configure --with-sysrepo --with-thrift 'CXXFLAGS=-O0 -g'
+
+    # FIXME: re-enable --with-sysrepo when gNMI support becomes more stable
+    # ./configure --with-sysrepo --with-thrift 'CXXFLAGS=-O0 -g'
+    ./configure --with-thrift 'CXXFLAGS=-O0 -g'
     make -j${NUM_CORES}
     sudo make install
     sudo ldconfig
@@ -381,8 +387,9 @@
 # In dependency order.
 check_and_do ${PROTOBUF_COMMIT} protobuf do_protobuf protobuf
 check_and_do ${GRPC_COMMIT} grpc do_grpc grpc
-check_and_do ${LIBYANG_COMMIT} libyang do_libyang libyang
-check_and_do ${SYSREPO_COMMIT} sysrepo do_sysrepo sysrepo
+# FIXME: re-enable when gNMI support becomes more stable
+# check_and_do ${LIBYANG_COMMIT} libyang do_libyang libyang
+# check_and_do ${SYSREPO_COMMIT} sysrepo do_sysrepo sysrepo
 check_and_do ${BMV2_COMMIT} bmv2 do_pi_bmv2_deps bmv2-deps
 check_and_do ${PI_COMMIT} p4runtime do_p4runtime p4runtime
 check_and_do ${BMV2_COMMIT} bmv2 do_bmv2 bmv2
diff --git a/tools/dev/p4vm/pre-ova-cleanup.sh b/tools/dev/p4vm/pre-ova-cleanup.sh
index dcfecc9..1f52148 100755
--- a/tools/dev/p4vm/pre-ova-cleanup.sh
+++ b/tools/dev/p4vm/pre-ova-cleanup.sh
@@ -16,5 +16,3 @@
 rm -rf ~/p4tools/sysrepo/build
 
 cat /dev/null > ~/.bash_history
-
-sudo poweroff