Host Fails to Boot After You Install ESXi in UEFI Mode

When you install ESXi on a host machine in UEFI mode, the machine might fail to boot.

Problem

When you reboot after installing ESXi on a host machine in UEFI mode, the reboot might fail. This problem is accompanied by an error message similar to Unexpected network error. No boot device available.

Cause

The host system fails to recognize the disk that ESXi is installed on as the boot disk.

Solution

1. While the error message is displayed on screen, press F11 to display boot options.
2. Select an option similar to Add boot option.
   The wording of the option might vary, depending on your system.
3. Select the file \EFI\BOOT\BOOTx64.EFI on the disk that you installed ESXi on.
4. Change the boot order so that the host boots from the option that you added.