On servers running ESXi, you can select the device that the server boots from.
- Select a host in the inventory.
- Click the Configure tab.
- Select Processors and click Boot Options.
- Select a boot device from the drop-down menu.
- (Optional) : To reboot immediately from the device you have selected, select Apply and Reboot on OK.
If you do not select Apply and Reboot on OK, the new setting takes effect when the host is next rebooted.
- Click OK.