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Nested ESXi Virtual Appliances are now back under VMware Flings Community!

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I know many of our internal teams (field, engineering, support, etc.), customers and partners have heavily relied on my Nested ESXi Virtual Appliances (VA) over the years which makes it seamless to deploy both VMware Cloud Foundation (VCF) and VMware vSphere Foundation (VVF) lab environments for learning, testing, troubleshooting, automation and development purposes. To support our customers in troubleshooting and prototyping purposes, I also make use of my Nested ESXi VAs on a regular basis and have found this to be invaluable in aiding my day to day work.

As part of the VMware by Broadcom "Day 2" transition, the hosting platform that housed my Nested ESXi downloads was no longer available and that impacted both the standalone Nested ESXi downloads but also the Nested ESXi Content Library, which provided a convenient way to subscribe to all the VAs from your vCenter Server.

Today, I excited to share that my Nested ESXi Virtual Appliance downloads are back and they are now available under the VMware Flings program! ?

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Updating handshakeTimeoutMs setting for ESXi 7.x & 8.x using configstorecli

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With the introduction of the ESXi Configuration Store back in vSphere 7.0 Update 1, all ESXi configuration changes should be managed using either the configstorecli for an individual ESXi host or leveraging the new vSphere Configuration Profiles (VCP) for scale with vCenter Server.

For certain ESXi hostd configurations such as configuring the handshakeTimeoutUs property, which has changed locations from several locations including /etc/vmware/hostd/config.xml and /etc/vmware/vpxa/vpxa.cfg to now /etc/vmware/rhttpproxy/config.xml in the latest ESXi 8.x release, it can be challenging to figure out the correct configstorecli syntax.

Having spent some time playing with the configstorecli, I was able to quickly help a customer recently who was looking to update the handshakeTimeoutUs property for ESXi 7.x and I wanted to make it easy for folks to find the syntax for both ESXi 7.x and 8.x.

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Quick Tip - Automating cpuUniformityHardCheckPanic configuration for ESXi Kickstart with USB

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To prevent ESXi from PSOD'ing when an Intel Hybrid Consumer CPU is detected with non-uniform capabilities, a workaround can be applied to ignore the uniformity miss-match which is needed before the ESXi installer fully boots up and also after the initial reboot.

For those looking to fully automate this process using ESXi Kickstart using USB as an example, there are two places where the kernel boot option must be added:

1) The first is the EFI\boot\boot.cfg file on the ESXi installer media (e.g. USB) where you will append to the kernelopt line as shown in the snippet below:

bootstate=0
title=Loading ESXi installer
timeout=5
prefix=
kernel=/b.b00
kernelopt=ks=usb:/KS.CFG cpuUniformityHardCheckPanic=FALSE
.....

2) The second must be added to the %post section of your ESXi kickstart, which will update the first ESXi bootbank's boot.cfg and ensure the kernel option is passed to ESXi when it reboots after installation:

%post --interpreter=busybox

sed -i '/^kernelopt=/ s/$/ cpuUniformityHardCheckPanic=FALSE/' /vmfs/volumes/BOOTBANK1/boot.cfg