The OS files are loaded and the ESXi host boots from those files into the installer.
The LUN must be dedicated to the modified ISO installation. If your LUN already contains data, a dialog box is displayed with a warning that data will be overwritten.
Abort the current installation.
Overwrite the existing data.
Store the data on a different LUN or device.
Upgrade ESXi, preserve VMFS datastore.
Install ESXi, preserve VMFS datastore.
Install ESXi, overwrite VMFS datastore.
This is required for a fresh install.
The Confirm Installation dialog box is displayed.
The installation runs to completion, and then the Installation Complete dialog box is displayed.