diff --git a/Vagrantfile b/Vagrantfile
index 40ebe0f..bbcea1a 100644
--- a/Vagrantfile
+++ b/Vagrantfile
@@ -1,5 +1,12 @@
+VAGRANT_BOX=ENV["VAGRANT_BOX"]
+if !VAGRANT_BOX || VAGRANT_BOX == "debian"
+  VAGRANT_BOX = "debian/bullseye64"
+elsif VAGRANT_BOX == "rocky"
+  VAGRANT_BOX = "rockylinux/8"
+end
+
 Vagrant.configure("2") do |config|
-  config.vm.box = "debian/bullseye64"
+  config.vm.box = VAGRANT_BOX
   config.vm.synced_folder ".", "/vagrant"
   config.vm.network "private_network", type: "dhcp"
   config.vm.provision "shell", path: "build.sh"
diff --git a/build.sh b/build.sh
index ce6a2b4..5edbb24 100755
--- a/build.sh
+++ b/build.sh
@@ -11,9 +11,20 @@ TEMPDIR="$(mktemp -d)"
 INSTALL=0
 BUILDDIR="$TEMPDIR/${PACKAGE}_$VERSION-$REVISION"
 
+# Test for distribution of GNU/Linux
+# 0 = unknown
+# 1 = debian
+# 2 = rocky/centos/rhel
+function check_distro {
+  if [ -f /etc/debian_version ]; then echo 1
+  elif [ -f /etc/rocky-release ] || [ -f /etc/centos-release ]; then echo 2
+  else echo 0
+  fi
+}
+
 # Build debian package
 function build_deb {
-  [ $INSTALL -eq 1 ] && install_headers
+  [ $INSTALL -eq 1 ] && debian_headers
   mkdir -p "$BUILDDIR/usr/src/${PACKAGE}-$VERSION"
   mkdir -p "$BUILDDIR/etc"
   mkdir -p "$BUILDDIR/DEBIAN"
@@ -24,6 +35,11 @@ function build_deb {
   dpkg-deb --build "${PACKAGE}_$VERSION-$REVISION"
 }
 
+# Build redhat package
+function build_rpm {
+  [ $INSTALL -eq 1 ] && rhel_headers
+}
+
 # Display details on module
 function info_mod {
   modinfo "$PACKAGE"
@@ -33,22 +49,36 @@ function info_mod {
   cat /var/log/messages | grep "$PACKAGE"
 }
 
-# Install Linux headers for current kernel
-function install_headers {
+# Install Linux headers for current debian kernel
+function debian_headers {
   export DEBIAN_FRONTEND=noninteractive
   apt-get update
   apt-get install -y linux-headers-$(uname -r)
 }
 
-# Build and install helloworld module or module(s) in $SCRATCH
+# Install Linux headers for current rhel kernel
+function rhel_headers {
+  VERSION="$(uname -r | rev | cut -d '.' -f 2- | rev)"
+  yum install -y kernel-headers-"$VERSION"
+}
+
+# Find GNU/Linux distribution
 set -x
+DISTRO="$(check_distro)"
+if [ $DISTRO -eq 0 ]; then
+  echo "ERROR: GNU/Linux distribution not detected"
+  exit -1
+fi
+
+# Build and install helloworld module or module(s) in $SCRATCH
 if [ ! -z "$(ls -Al $SCRATCH | grep -e ^d)" ]; then
   cd "$SCRATCH"
   for d in */ ; do
     if [ -f "$(basename $d)/override.sh" ]; then
       SRCDIR="$(pwd)/$(basename $d)"
       . "$(basename $d)/override.sh"
-      build_deb
+      [ $DISTRO -eq 1 ] && build_deb
+      [ $DISTRO -eq 2 ] && build_rpm
       if [ $INSTALL -eq 1 ]; then
         apt-get install -y "./${PACKAGE}_$VERSION-$REVISION.deb"
         info_mod
@@ -59,7 +89,13 @@ if [ ! -z "$(ls -Al $SCRATCH | grep -e ^d)" ]; then
   done
 else
   INSTALL=1
-  build_deb
-  apt-get install -y "./${PACKAGE}_$VERSION-$REVISION.deb"
-  info_mod
+  if [ $DISTRO -eq 1 ]; then
+    build_deb
+    apt-get install -y "./${PACKAGE}_$VERSION-$REVISION.deb"
+  elif [ $DISTRO -eq 2 ]; then
+    build_rpm
+    echo "end of debug: exiting..."
+    exit 0
+    yum install -y "./${PACKAGE}_$VERSION-$REVISION.rpm"
+  fi
 fi
diff --git a/src/RHEL/helloworld.spec b/src/RHEL/helloworld.spec
new file mode 100644
index 0000000..e69de29