diff --git a/installers/full_install_osm.sh b/installers/full_install_osm.sh
index 589fffa..e9a0611 100755
--- a/installers/full_install_osm.sh
+++ b/installers/full_install_osm.sh
@@ -20,10 +20,7 @@
     echo -e "  OPTIONS"
     echo -e "     -h / --help:    print this help"
     echo -e "     -y:             do not prompt for confirmation, assumes yes"
-    echo -e "     -r <repo>:      use specified repository name for osm packages"
-    echo -e "     -R <release>:   use specified release for osm binaries (deb packages, ...)"
-    echo -e "     -u <repo base>: use specified repository url for osm packages"
-    echo -e "     -k <repo key>:  use specified repository public key url"
+    echo -e "     -S <gerrit refspec>: use a specific devops gerrit refspec (branch, tag, commit), default is master"
     echo -e "     -a <apt proxy url>: use this apt proxy url when downloading apt packages (air-gapped installation)"
     echo -e "     -c <kubernetes engine>: use a specific kubernetes engine (options: kubeadm, k3s), default is kubeadm"
     echo -e "     -t <docker tag> specify osm docker tag (default is latest)"
@@ -52,8 +49,11 @@
 source $OSM_DEVOPS/installers/00-default-install-options.rc
 
 RE_CHECK='^[a-z0-9]([-a-z0-9]*[a-z0-9])?$'
-while getopts ":a:c:e:r:k:u:R:D:s:t:U:d:p:m:T:M:G:O:-: hy" o; do
+while getopts ":a:c:e:S:D:s:t:U:d:p:m:T:M:G:O:-: hy" o; do
     case "${o}" in
+        S)
+            DEVOPS_GERRIT_REFSPEC="${OPTARG}"
+            ;;
         a)
             APT_PROXY_URL=${OPTARG}
             ;;
@@ -67,22 +67,6 @@
         e)
             OSM_K8S_EXTERNAL_IP="${OPTARG}"
             ;;
-        r)
-            REPOSITORY="${OPTARG}"
-            REPO_ARGS+=(-r "$REPOSITORY")
-            ;;
-        k)
-            REPOSITORY_KEY="${OPTARG}"
-            REPO_ARGS+=(-k "$REPOSITORY_KEY")
-            ;;
-        u)
-            REPOSITORY_BASE="${OPTARG}"
-            REPO_ARGS+=(-u "$REPOSITORY_BASE")
-            ;;
-        R)
-            RELEASE="${OPTARG}"
-            REPO_ARGS+=(-R "$RELEASE")
-            ;;
         D)
             OSM_DEVOPS="${OPTARG}"
             ;;