Unable to replace the default certificate in vSphere 8.0u2x with the option:
"Replace with external CA certificate where CSR generated from a certificate authority (requires private key)"
vSphere ESXI 7.0x
vSphere ESI 8.02 and earlier
Functionality to replace default certificates with custom certificates is only available in vCenter 8.0u3x and later, need to upgrade vCenter to use the feature.
Upgrade to vSphere ESXI 8.0u3x. The option to "Replace with external CA certificate where CSR generated from a certificate authority (requires private key)" will be available.