echo "---> Updating operating system"
apt-get update -qq
-apt-get upgrade -y --force-yes -qq
+DEBIAN_FRONTEND=noninteractive apt-get upgrade -y --force-yes -qq \
+ -o Dpkg::Options::="--force-confdef" -o Dpkg::Options::="--force-confold"
# To handle the prompt style that is expected all over the environment
# with how use use robotframework we need to make sure that it is
./boot.sh
./configure --with-openflow-src-dir=$OF_DIR
make
-make install
\ No newline at end of file
+make install
+
+# Install vlan for vlan based tests in VTN suites
+apt-get install -y --force-yes -qq vlan