If you do not have an ESXi installation CD/DVD, you can create one.
You can also create an installer ISO image that includes a custom installation script. See Create an Installer ISO Image with a Custom Installation or Upgrade Script.
- Download the ESXi installer from the VMware website at https://my.vmware.com/web/vmware/downloads.
ESXi is listed under Datacenter & Cloud Infrastructure.
- Confirm that the md5sum is correct.
See the VMware Web site topic Using MD5 Checksums at http://www.vmware.com/download/md5.html.
- Burn the ISO image to a CD or DVD.