Regardless of the installation method you have chosen for your host, once the ESXi has been installed on the destination device, a specific partition layout is created on the disk. It is not possible to modify the partition layout during the installation process, and all the partitions are created automatically.
To identify the partition layout created by the installer in vSphere 6.5, you should use the partedUtil command, because the fdisk command was compatible with previous releases only. With the introduction of the GUID Partition Table (GPT) partition from ESXi 5.x, the fdisk command has been deprecated because it doesn't work anymore. To display the partition table, you need to access the ESXi console and run ...
