Cisco APIC Installation and ACI Upgrade and Downgrade Guide

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Cisco APIC Installation and ACI Upgrade and Downgrade Guide

Uninstall a switch software maintenance upgrade patch using the GUI

Updated: July 12, 2026

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Configure the uninstallation of a software maintenance upgrade (SMU) patch from a Cisco Application Centric Infrastructure (ACI)-mode switch using the GUI.

In the Cisco Application Policy Infrastructure Controller (APIC) 5.2(1) release or later, you can use the following procedure to uninstall a software maintenance upgrade (SMU) patch from a Cisco Application Centric Infrastructure (ACI)-mode switch. The process for uninstalling includes creating an upgrade group and using that group to uninstall the SMU patch.

SMU patch installation or uninstallation uses the same update group as a regular firmware upgrade. Because one node can belong to only one update group, when you apply a SMU patch to a specific node, remove that node from the existing group and create a new group dedicated for the node so that other nodes are not impacted. In the future when you need to perform a regular firmware upgrade for the entire fabric, you can delete the dedicated update group used for the SMU patch installation and add the node back to one of the original groups. If all the nodes in the existing group need the SMU patch, you can simply reuse the same update group without creating a new update group.

Follow these steps to uninstall a switch software maintenance upgrade patch using the GUI:

Procedure

1.

Set up a node firmware update. On the Version Selection screen, for the Update Type, choose Software Maintenance Upgrade (Uninstall), then choose the SMU patch to uninstall in the Select Firmware section.

For the procedure, see Upgrade or Downgrade with APIC Release 5.1 or Later Using the GUI. Even though you are uninstalling the patch, the procedure is almost the same as the upgrade procedure.

When you get to the Confirmation screen, continue with the next step.
2.

If the information that displays is correct, then click Uninstall and Skip Reload or Begin Uninstall. Otherwise, return to any of the previous screens and change the configuration as appropriate.

  • Uninstall and Skip Reload: The switches are not rebooted after the SMU patch gets uninstalled. Choose this action if you want to uninstall multiple SMU patches and this patch is not the final patch. In this case, repeat this entire procedure for each additional patch and continue to choose Uninstall and Skip Reload until you are uninstalling the final patch. For the final patch, choose Begin Uninstall. Optionally, you can choose this action and manually reboot the switch after the final patch gets uninstalled.

  • Begin Uninstall: The switches are rebooted after the SMU patch gets uninstalled. Choose this action if you want to uninstall only one SMU patch, or if you are uninstalling the final patch of multiple patches.