WilliamLam.com

Heads Up - ESXi 8.0 Update 2 requires XSAVE CPU instruction even with allowLegacyCPU=true

by // 25 Comments

As shared back in 2022 in my Homelab Considerations for vSphere 8.x blog post, if you attempt to install ESXi on system where the CPU is no longer being supported by the OEM vendor, who then informs VMware on what to publish on the VMware Hardware Compatibility Guide (VCG), you will see the following error message preventing you from proceeding.


Also mentioned in that article, you can override this default behavior with the following ESXi boot option: allowLegacyCPU=true which would convert this from an error to warning message but allowing you to proceed in an installation or upgrade.

Obviously, this is not officially supported by VMware and its behavior was never guarantee but it certainly was a nice gesture, in my humble opinion from Engineering, as they could have easily not allowed any override based on on our official VCG. For homelab use cases, it might be okay to use a CPU that is 5 to 6 years old, knowing that it should be replaced hopefully in the near future.

I just had a couple of users report issues while upgrading to the latest ESXi 8.0 Update 2 release when using the allowLegacyCPU boot option and saw the following error message

VMB: 716: Unsupported CPU


The ESXi installer immediately halts and prevents the upgrade from proceeding ...

[Read more...]

ESXi on Lenovo ThinkStation P3 Ultra

by // 30 Comments

After getting hands on with the Lenovo P3 Tiny, which was my first time experiencing a Lenovo kit, I was recommended by the Lenovo team to also check out its larger and more powerful sibling the Lenovo P3 Ultra.


While many of the smaller form factor systems have gotten more capable over the years, especially the classic 4x4 kits, they do have their limits in terms resources and expandability.

It has been some time since I have looked at larger kits but after glancing at the P3 Ultra specs, I can see why the Lenovo team thought this might be of interests to the VMware Community, especially with all the additional capabilities, packed into a larger but still pretty compact form factor design.

[Read more...]

ESXi on SimplyNUC Moonstone

by // 1 Comment

SimplyNUC has been a long time partner/reseller of the popular Intel NUC platform for quite some time but over the past few years, they have expanded their portfolio to include additional 4x4 systems that are completely designed in-house by SimplyNUC include Topaz, Ruby, Cypress and Chapel Rock to just name a few.


Moonstone is the latest 4x4 addition from SimplyNUC, which is an AMD-based kit that includes support for the latest AMD Zen 4 (Phoenix) and Zen 3+ (Rembrandt R) processors. The VMware Community has always been interested in an AMD-based kit but typically they do not work well due to the presence of a Realtek-based network adaptor, where drivers from Realtek does not exists for ESXi.

The first thing that caught my attention when I first heard about Moonstone was that this was an AMD kit that features an Intel-based network adapter as its primary network interface! ?

This definitely took me by surprise, not sure if AMD was making any statements about their networking choices or simply diversifying their networking options? ? Either way, I was not complaining and I thought this might be the first real viable AMD 4x4 candidate, from a VMware perspective, in quite some time.


Thanks to the SimplyNUC team, I did not have to wonder much more and I got the opportunity to put the Moonstone through its paces and see what it can do for the VMware Community!

[Read more...]