diff --git a/deployed-server/deployed-server.yaml b/deployed-server/deployed-server.yaml
index 7fc1862c1d..2f7d975b96 100644
--- a/deployed-server/deployed-server.yaml
+++ b/deployed-server/deployed-server.yaml
@@ -45,6 +45,14 @@ parameters:
       Command or script snippet to run on all overcloud nodes to
       initialize the upgrade process. E.g. a repository switch.
     default: ''
+  UpgradeInitCommonCommand:
+    type: string
+    description: |
+      Common commands required by the upgrades process. This should not
+      normally be modified by the operator and is set and unset in the
+      major-upgrade-composable-steps.yaml and major-upgrade-converge.yaml
+      environment files.
+    default: ''
   deployment_swift_data:
     type: json
     default: {}
@@ -71,6 +79,7 @@ resources:
         - - "#!/bin/bash\n\n"
           - "if [[ -f /etc/resolv.conf.save ]] ; then rm /etc/resolv.conf.save; fi\n\n"
           - get_param: UpgradeInitCommand
+          - get_param: UpgradeInitCommonCommand
 
   UpgradeInitDeployment:
     type: OS::Heat::SoftwareDeployment