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USB Network Native Driver Fling for ESXi 8.0 Update 1

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Songtao and I are happy to share that we now have a compatible version of the USB Network Native Driver for ESX v1.12 Fling that supports the latest ESXi 8.0 Update 1 release! 🥳

This release also includes a couple of minor enhancement and fixes which are listed below:

  • Support for new DLINK RTL8156 device (0x2001:0xb301)
  • Updated maximum supported USB Network devices from 8 to 12
  • Resolved 2.5GbE link speed issue for RTL8156 adapter

Additionally, while ESXi 8.0 Update 1 has just been released, we know that not everyone will be on the latest version and these enhancement and fixes have also been ported to a version of USB Network Native Driver for ESX v1.12 Fling driver to also support ESXi 8.0, 8.0a, 8.0b, etc.

Use the following ESXi Component ZIP files based on your desired version of ESXi 8.x:

  • ESXi 8.0 - ESXi800-VMKUSB-NIC-FLING-64098182-component-21668107.zip
  • ESXi 8.0 Update 1 - ESXi80U1-VMKUSB-NIC-FLING-64098092-component-21669994.zip

Note: There are no plans to backport these enhancements/fixes to prior ESXi releases

Finally, if you are looking to create a custom ESXi ISO or Image Profile AND you either have an existing or can deploy a vCenter Server, please refer to this blog post for using vSphere Lifecycle Manager (vLCM) via the UI or PowerCLI to create your custom images.


If you do NOT have or can not deploy a vCenter Server (no hosts required), then you can refer to this blog post for using PowerCLI Image Builder to create your custom images, but make sure you update Python dependency to at least 3.7.9+ or you will run into this issue.

Quick Tip - How to deploy vCenter Server Appliance (VCSA) to legacy CPU without VMX Unrestricted Guest feature?

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I recently had a customer reach out who was having an issue deploying the latest vCenter Server Appliance (VCSA) 8.x to an ESXi host that had a CPU that was no longer supported. After the VCSA OVA was uploaded by the VCSA (UI/CLI) installer, it fails to power on the VM with the following error message:

The Intel "VMX Unrestricted Guest" feature is necessary to run this virtual machine on an Intel processor

This problem is only observed with older legacy CPUs that do not support some of the modern CPU instructions that is expected by most workloads today. There is workaround for those that still wish to run on unsupported hardware, which may yield other unexpected behaviors, by adding a VM Advanced Setting monitor.allowLegacyCPU = TRUE

However, there is a chicken/egg problem that user was not able to add this setting before the VM was automatically powered on by the VCSA Installer.

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Quick Tip - Automating allowed and not allowed Datastores for use with vSphere Cluster Services (vCLS)

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One of the recent features of the vSphere Cluster Services (vCLS) is the ability configure the vSphere Datastores that vCLS is allowed to use to provision the required service VMs, which can be on a vSphere Cluster under Configure->vSphere Cluster Services->Datastores as shown in the screenshot below.


In addition to the vSphere UI, you can also programmatically update this configuration using the vSphere API and with tools like PowerCLI as one of the interfaces to the API.

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