In order to image your servers, you need to download an ESXi ISO and any vSphere Installation Bundles (VIBs) required to get the servers to a supported version of ESXi. See the BOM section of the VMware Cloud Foundation Release Notes for information about ESXi support.
You can download the ISO and VIBs from My VMware (https://my.vmware.com) to any location on the Windows machine that is connected to the Cloud Builder VM. Make sure to record the MD5 or SHA-1 checksums. You will need them when you upload the ISO/VIB to the VMware Imaging Appliance.
