diff --git a/docker-install-all.sh b/docker-install-all.sh
index 2148936..0f05b9b 100755
--- a/docker-install-all.sh
+++ b/docker-install-all.sh
@@ -27,16 +27,17 @@ mem=$(sed -E 's/^MemTotal: +([0-9]+) kB/\1/p;d' < /proc/meminfo)
 mempercore=$(((mem/1024-4096)/cores))
 
 # install kata containers
-echo "Installing kata...."
-cid=$(docker run -d --runtime=runc -v /opt/kata:/opt/kata -v /var/run/dbus:/var/run/dbus -v /run/systemd:/run/systemd -v /etc/docker:/etc/docker -it katadocker/kata-deploy kata-deploy-docker install)
-# wait for finish
-while [ "$(docker container inspect -f '{{.State.Running}}' "$cid")" == "true" ]; do
-    sleep 1
-done
-echo "Kata installed"
-
-# update default container CPU and memory
-sed -i "s/default_vcpus = .*/default_vcpus = 2/g;s/default_memory = .*/default-memory = $mempercore/g" /opt/kata/share/defaults/kata-containers/configuration-qemu-virtiofs.toml
+if ! docker info 2>/dev/null|grep Runtimes:|grep -qs kata-qemu-virtiofs; then
+    echo "Installing kata...."
+    cid=$(docker run -d --runtime=runc -v /opt/kata:/opt/kata -v /var/run/dbus:/var/run/dbus -v /run/systemd:/run/systemd -v /etc/docker:/etc/docker -it katadocker/kata-deploy kata-deploy-docker install)
+    # wait for finish
+    while [ "$(docker container inspect -f '{{.State.Running}}' "$cid")" == "true" ]; do
+        sleep 1
+    done
+    # update default container CPU and memory
+    sed -i "s/default_vcpus = .*/default_vcpus = 2/g;s/default_memory = .*/default-memory = $mempercore/g" /opt/kata/share/defaults/kata-containers/configuration-qemu-virtiofs.toml
+    echo "Kata installed"
+fi
 
 trusty
 xenial