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Heads Up - Nested ESXi crashes in ESXi 7.0 running on older CPUs

04.17.2020 by William Lam // 27 Comments

Thanks to Patrik Kernstock, who works in our Technical Support organization at VMware, for making me aware of an issue related to Nested ESXi running on an ESXi host that has been upgraded to ESXi 7.0. Several folks in the community have noticed after upgrading their Intel NUC 7th Gen and deploying a Nested ESXi VM and powering on an inner-guestOS would causes the Nested ESXi VM to crash.

Upon further investigation, it looks like this is not specific to the Intel NUC platform but rather with a specific generation of CPUs which are Intel Sky Lake-based and as a result, some customers are noticing this affect on their 7th Gen NUC.

UPDATE (06/23/20) - ESXi 7.0b has just been released and contains the fix for the Nested ESXi VM crash. If you are using an Intel NUC 10, do not just apply the patch as the updated ne1000 VIB within the patch will override existing Intel NIC driver causing the network adapter to no longer function. It is recommended that you download the patch and replace the default ne1000 VIB using Image Builder with the Intel NIC version before applying the update. To download the patch, please visit VMware Patch Portal site.

The good news is that this issue has already been reported and we should have a fix in a future update of ESXi. In the meantime, you can still run Nested ESXi and Nested Virtualization on these affected CPUs, you just will not be able to power on inner-guest VMs. Big thanks to Patrik for helping out with the testing and triaging this internally.

Categories // Nested Virtualization, Not Supported, vSphere 7.0 Tags // ESXi 7.0, Kaby Lake, Nested ESXi, Sky Lake, vSphere 7.0

Update on Intel NUC 7th Gen (Kaby Lake) & ESXi 6.x

02.15.2017 by William Lam // 28 Comments

Intel just started shipping their i3 7th Gen (Kaby Lake) Intel NUCs and no surprise, Florian of virten.net has already gotten his hands on a unit for testing. The Intel NUCs is a very popular platform for running vSphere/vSAN-based home labs, especially for their price point and footprint. Last week, Florian discovered from his testing that the built-in network adapter on the 7th Gen NUC was not being detected by any of the ESXi installers and had published his findings here.

Since the Intel NUC is not an officially supported platform for ESXi, it does not surprise me that these sort of things happen, even if the NUC had a pretty good track record going back to the 5th Gen releases. Nonetheless, I reached out to Florian to see if he can provide me with a vm-support bundle and see if there was anything I could do to help.

A couple of Engineers took a look and quickly identified the issue with the Kabylake NIC (8086:15d8) but before getting to the solution, I did want to clarify something. The Kabylake NIC is actually NOT an officially supported NIC for ESXi and although it currently shows up in the VMware HCL, it is a mistake. I have been told the VMware HCL will be updated shortly to reflect this, apologies for any confusion that this may have caused.

Ok, so the great news is that we do have a solution for getting ESXi to recognize the built-in NIC on the 7th Gen Intel NUCs. The semi-bad news is that we currently do not have a solution in the short term for any released version of ESXi, as the fix will require an updated version of the e1000e Native Driver which will only be available in a future update of ESXi. I can not provide any timelines, but keep an eye on this blog and I will publish more details once they are available.

In the meantime, if you already own a 7th Gen NUC, there is a workaround which Florian has already blogged about here which uses the USB Ethernet Adapter VIB for the initial ESXi installation. If you are planning to purchase the 7th Gen NUC and would like to wait for folks to confirm the fix, then I would recommend holding off or potentially looking at the 6th Gen if you can not wait. Thanks to Florian and others who shared their experiences with the 7th Gen NUC and also to the VMware Engineers who found a quick resolution to the problem.

UPDATE (07/27/17) - The updated e1000e Native Driver that was included in ESXi 6.0 Update 3 is now included in ESXi 6.5 Update 1 which just GA'ed. You should be able to install ESXi without require any additional modifications to the latest Intel NUCs.

UPDATE (02/24/17) - An updated e1000e driver which contains a fix for 7th Gen NUC is now available as part of ESXi 6.0 Update 3, below are several options in how you can consume the driver.

[Read more...]

Categories // ESXi, Home Lab, Not Supported, vSphere 6.0, vSphere 6.5 Tags // Intel NUC, Kaby Lake, ne1000, ne1000e, vSphere 6.5

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William is Distinguished Platform Engineering Architect in the VMware Cloud Foundation (VCF) Division at Broadcom. His primary focus is helping customers and partners build, run and operate a modern Private Cloud using the VMware Cloud Foundation (VCF) platform.

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