Extension baselines contain additional software for ESXi hosts. This additional software might be VMware software or third-party software.


  • Required privileges: VMware vSphere Update Manager.Manage Baselines.


  1. In the vSphere Client, select Menu > Update Manager.
  2. Navigate to Menu > Update Manager.
    The Update Manager home appears.
  3. Click Baselines.
  4. Click New and select New Baseline.
    The Create Baseline wizard appears.
  5. On the Name and description page, enter a name and, optionally, a description of the baseline.
  6. To create an extension baseline, select Extension and click Next.
  7. On the Select Extensions page, select individual extensions to include in the baseline and click Next.
  8. On the Summary page, review your selections and click Finish.


The new baseline appears in the baselines list on the Baselines tab.You can attach the baseline to a data center, a cluster, or a host.

What to do next

Attach the baseline to a data center, a cluster, or a host.