esxcli software vib install -d /path/to/Dell-OpenManage.zip
For 15th gen (R660/R760) and newer—absolutely use the Dell ISO. vmware esxi 8 dell customized iso download better
over the standard "vanilla" image is considered a best practice esxcli software vib install -d /path/to/Dell-OpenManage
However, a clean install with the Dell Custom ISO is always preferred to ensure kernel compatibility. vmware esxi 8 dell customized iso download better