Update install.sh to support RedHat distrubtion

Mininet installation will also work on RedHat distribution

util/install.sh

@@ -45,7 +45,8 @@ if [ "$DIST" = "Ubuntu" ] || [ "$DIST" = "Debian" ]; then
     fi
 fi
 test -e /etc/fedora-release && DIST="Fedora"
-if [ "$DIST" = "Fedora" ]; then
+test -e /etc/redhat-release && DIST="RedHatEnterpriseServer"
+if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
     install='sudo yum -y install'
     remove='sudo yum -y erase'
     pkginst='sudo rpm -ivh'
@@ -66,8 +67,8 @@ echo "Detected Linux distribution: $DIST $RELEASE $CODENAME $ARCH"
 KERNEL_NAME=`uname -r`
 KERNEL_HEADERS=kernel-headers-${KERNEL_NAME}
 
-if ! echo $DIST | egrep 'Ubuntu|Debian|Fedora'; then
-    echo "Install.sh currently only supports Ubuntu, Debian and Fedora."
+if ! echo $DIST | egrep 'Ubuntu|Debian|Fedora|RedHatEnterpriseServer'; then
+    echo "Install.sh currently only supports Ubuntu, Debian, RedHat and Fedora."
     exit 1
 fi
 
@@ -123,7 +124,7 @@ function kernel_clean {
 # Install Mininet deps
 function mn_deps {
     echo "Installing Mininet dependencies"
-    if [ "$DIST" = "Fedora" ]; then
+    if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
         $install gcc make socat psmisc xterm openssh-clients iperf \
             iproute telnet python-setuptools libcgroup-tools \
             ethtool help2man pyflakes pylint python-pep8
@@ -156,7 +157,7 @@ function of {
     echo "Installing OpenFlow reference implementation..."
     cd $BUILD_DIR
     $install autoconf automake libtool make gcc
-    if [ "$DIST" = "Fedora" ]; then
+    if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
         $install git pkgconfig glibc-devel
     else
         $install git-core autotools-dev pkg-config libc6-dev
@@ -224,7 +225,7 @@ function of13 {
 function install_wireshark {
     if ! which wireshark; then
         echo "Installing Wireshark"
-        if [ "$DIST" = "Fedora" ]; then
+        if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
             $install wireshark wireshark-gnome
         else
             $install wireshark tshark
@@ -334,7 +335,7 @@ function ubuntuOvs {
 function ovs {
     echo "Installing Open vSwitch..."
 
-    if [ "$DIST" == "Fedora" ]; then
+    if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
         $install openvswitch openvswitch-controller
         return
     fi
@@ -546,7 +547,7 @@ function oftest {
 function cbench {
     echo "Installing cbench..."
 
-    if [ "$DIST" = "Fedora" ]; then
+    if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
         $install net-snmp-devel libpcap-devel libconfig-devel
     else
         $install libsnmp-dev libpcap-dev libconfig-dev
@@ -616,7 +617,7 @@ net.ipv6.conf.lo.disable_ipv6 = 1' | sudo tee -a /etc/sysctl.conf > /dev/null
     $install ntp
 
     # Install vconfig for VLAN example
-    if [ "$DIST" = "Fedora" ]; then
+    if [ "$DIST" = "Fedora" -o "$DIST" = "RedHatEnterpriseServer" ]; then
         $install vconfig
     else
         $install vlan