To upgrade or migrate the hosts in your vSphere environment, you must create host upgrade baselines.
Connect the vSphere Client to a vCenter Server system with which Update Manager is registered, and on the Home page, click Update Manager under Solutions and Applications. If your vCenter Server system is part of a connected group in vCenter Linked Mode, you must specify the Update Manager instance to use, by selecting the name of the corresponding vCenter Server system in the navigation bar.
Upload at least one ESXi image.
- On the Baselines and Groups tab, click Create above the Baselines pane.
- Under Baseline Type, select Host Upgrade and click Next.
- On the ESXi Image page, select a host upgrade image and click Next.
- Review the Ready to Complete page and click Finish.
The new baseline is displayed in the Baselines pane of the Baselines and Groups tab.