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Simplified Nested ESXi installation in ESXi 7.0 Update 2 using HTTP Boot over VirtualEFI

03.22.2021 by William Lam // 19 Comments

Deploying an ESXi scripted installation aka Kickstart running within a VM (Nested ESXi) has a number of benefits, especially for testing and development purposes. This was something I did regularly as a customer, especially with new releases of ESXi to ensure our existing automation scripts and processes continued to work before rolling out into production. ESXi kickstart itself is pretty straight forward, but the required supporting infrastructure (PXE Server, DHCP, TFTP, etc) that needs to be configured, especially for a greenfield deployment can often be challenging for new comers.

Even with an existing PXE infrastructure, it can often be difficult to configure or troubleshoot depending on your level of access which does not add any value in actually testing or automating the ESXi scripted installation process. In ESXi 7.0 Update 2, an enhancement was made to the Virtual Machine's UEFI firmware called VirtualEFI that would enable ESXi to perform an HTTP Boot given the ESXi bootloader URL and without requiring any of the traditional PXE infrastructure.

To take advantage of this new capability, you just need to have a physical server running ESXi 7.0 Update 2 and a VM that is configured with the latest vHW19 compatibility. To configure HTTP boot, you will need to add the following two VM Advanced Settings:

  • networkBootProtocol - httpv4 or httpv6
  • networkBootUri - HTTP URL to the ESXi bootloader (bootx64.efi)

Disclaimer: Nested ESXi and Nested Virtualization is not officially supported by VMware

[Read more...]

Categories // Automation, ESXi, Nested Virtualization, vSphere 7.0 Tags // efi, ESXi 7.0 Update 2, Nested ESXi, nested virtualization, UEFI, vSphere 7.0 Update 2

Automated Nested Lab Deployment on SDDC Part 4: Oracle Cloud VMware Solution

10.30.2020 by William Lam // Leave a Comment


In this final blog series, we are now going to take a look at deploying our Nested Lab in an Oracle Cloud VMware Solution environment. Similiar to GCVE, we also will have the ability to run Nested vSAN on top of the physical vSAN within OCVS and by default, customers are provided with the full administrator credentials. For networking, customers also have full access to the NSX-T Manager instance and this means that MAC Learning can be enabled and will allow inner-guest workloads will be able to communicate properly within and outside of the Nested Lab deployment.

Disclaimer: Nested ESXi is not officially supported on Oracle Cloud VMware Solution or by VMware.

[Read more...]

Categories // Automation, Nested Virtualization, Oracle Cloud VMware Solution, VMware Cloud Tags // Oracle VMware Cloud Solution, VMware Cloud

Automated Nested Lab Deployment on SDDC Part 3: Google VMware Cloud Engine

10.29.2020 by William Lam // 1 Comment


In Part 3 of this series, we will be taking a look at deploying our Nested Lab in a Google Cloud VMware Engine environment. One thing you may notice that is different between VMConAWS and AVS is that we are actually running a Nested vSAN on top of the physical vSAN within GCVE. In the current version of GCVE, customers have the ability to "escalate" their privileges from the default and this would allow us to configure the necessary ESXi advanced setting so that we do not have to rely on an NFS setup. For networking, customers also have full access to the NSX-T Manager instance and this means that MAC Learning can be enabled which will allow inner-guest workloads will be able to communicate properly within and outside of the Nested Lab deployment.

Disclaimer: Nested ESXi is not officially supported on Google Cloud VMware Engine or by VMware.

[Read more...]

Categories // Automation, Google Cloud VMware Engine, Nested Virtualization, VMware Cloud Tags // Google Cloud VMware Engine, VMware Cloud

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Author

William Lam is a Senior Staff Solution Architect working in the VMware Cloud team within the Cloud Infrastructure Business Group (CIBG) at VMware. He focuses on Cloud Native, Automation, Integration and Operation for the VMware Cloud based Software Defined Datacenters (SDDC) across Private, Hybrid and Public Cloud

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