To revert to a previous version of ESXi after a failed upgrade:
Note: Back up your configuration data before making any changes.
- In the console screen of the ESXi host, press Ctrl+Alt+F2 to see the Direct Console User Interface (DCUI) screen.
- In the DCUI screen, press F12 to view the shutdown options for the ESXi host.
- Press F11 to reboot.
- When the Hypervisor progress bar starts loading, press Shift+R. You see a pop-up with a warning:
Current hypervisor will permanently be replaced
with build: X.X.X-XXXXXX. Are you sure? [Y/n]
- Press Shift+Y to roll back the build.
- Press Enter to boot.