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Automated ESXi Installation to USB using Kickstart

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I frequently re-install ESXi on my physical host for various types of testing as I normally work with a number of future releases. Although the process just takes a couple of minutes, having to enter the exact same information each time and also requiring a keyboard and monitor is not really ideal. For the majority, this is really not a problem and manually going through the install workflow is fine for most folks, especially as this is an infrequent operation.

However, with some recent customer conversations, I thought it was worth while to re-visit this topic and demonstrating just how easy it is to automate the installation of ESXi with just a single bootable USB device and embedding an ESXi Kickstart Script. Even for infrequent installation and/or upgrades of ESXi for home labs, this can be a time saver, especially if you do not have monitor and keyboard just lying around. Below are instructions including a reference Kickstart example that folks can use as a starting point. For more advanced automation, please take a look at my ESXi Kickstart Resources as well as the official VMware documentation for ESXi Scripted Installations.

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Useful M.2 NVMe accessories for vSphere (VSAN/VMFS) Home Labs

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I recently acquired a new toy for the home lab thanks to Timo Sugliani who shared an article on Twitter a few weeks back for a new USB-based enclosure that supports an NVMe SSD device using the M.2 form factor.

I was excited to give the accessory a try, especially as the M.2 devices are used regularly for  vSphere home labs running on either the Intel NUCs or Supermicro E200-8D. Most of these platforms only support a single M.2 slot and this is an easy way to add additional high performance storage capacity with a small footprint. The other benefit with an external enclosure is that you now have a portable and reliable storage solution that can easily be moved from system to system, especially for those that have asked about running VMFS on USB-based device.

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Project USB to SDDC - Part 3

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OK, the wait is finally over! In this final article, we will now walk through the process of getting access to this project as well as how to get this deployed in your own environment. For those that just want to see the code, you can find it at the Github project below:

Github Project: https://github.com/lamw/usb-to-sddc

Below are the details outlining the environment and software requirements as well as the instructions to consume this in your own home lab environment. The content below is a subset of what is published on the Github project, but this should get you going. For more details, please refer to the Github project and if you have any issues/questions, feel free to file a Github issue.

Environment Requirements:

  • USB key that is at least 6GB in capacity
  • Access to either macOS or Linux system as the script that creates the USB key is only supported on these two platforms
  • No additional USB keys must be plugged into the hardware system other than the primary installer USB key
  • Hardware system must have at least 2 disk drives which can either be 1xHDD and 1xSSD for running Hybrid vSAN OR 2xSSD for running All-Flash vSAN
  • Both Intel NUC 6th Gen and Supermicro E200-8D and E300-8D have been tested with this solution. It should work with other hardware systems that meet the minimum requirements but YMMV

Software Requirements:

Note: Other ESXi / VCSA 6.5.x versions can also be substituted, this includes the latest ESXi 6.5d (vSAN 6.6) release which I have also verified myself.

UPDATE (04/17/18) - No changes are required to get vSphere 6.7 to work, the only minor thing to be aware of is that the vSphere Web Client customization has changed in 6.7 and so you need to set VCSA_WEBCLIENT_THEME_NAME="" as empty string or you will find that the UI will not load unless you delete the customization directory in the VCSA that was pulled down automatically.

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