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HOW TO: Update VMware ESXi 7U1 (7.0.1) to VMware ESXi 7U2a (7.0.2) using an ISO image

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Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
EE Fellow, 2xMVE, Expert of the Year 2017-2011, Scribe 2016-2012, Author of the Year 2018-6,2013-2012 VMware vExpert Pro, vExpert 2020-2011
This video will show you how to update ESXi 7U1 to ESXi 7.0U2a using an ISO image to get your system up to the latest release. In this tutorial, the version of ESXi 7.0 installed is ESXi 7.0U1, but this article can be followed to upgrade any version of ESXi 7.0. If your ESXi host has access to the internet, there is a quicker method shown in this video - HOW TO: Update VMware ESXi 7.0U2 to ESXi 7.0U2a direct from VMware.

VMware has removed many older legacy processors (CPUs) from ESXi 7.0U2, and also storage and network controllers. Please check the VMware Hardware Compatibility Lists (HCL) here.

for more additional guidance and a step by step tutorial with screenshots, which supports this video, please see the following article, which this video is based on  HOW TO: Upgrade VMware ESXi 5.5 to VMware ESXi 6.0 using an ISO image

It is not recommended to install ESXi 7.0 on USB or SD cards because of higher write I/O, and the SD cards are currently suffering because they are not higher endurance. Problems have been found in the wild.

It is technically still supported; eventually, this may filter down through the server vendors...

Some additional information regarding the use of USB and SD cards with VMware vSphere Hypervisor 7.0 (ESXi 7.0) and installations.

Installing ESXi on a supported USB flash drive or SD flash card (2004784)

vSphere 7 – ESXi System Storage Changes

VMware vSphere 7.x on Dell EMC PowerEdge Servers Getting Started Guide

Virtual SAN Considerations When Booting from a Flash Device

VMFS-L Locker partition corruption on SD cards in ESXi 7.0 (83376)

Video Steps

1. Download ESXi ISO image (Includes VMware Tools) from VMware.

Download ESXi 7.0.2a from VMware. Pay close attention if you require a Custom Image or OEM version for your vendor server.

2. Mount the ISO or Insert the CDROM in the Host ESXi 7.0 server.

Insert the CDROM in the server.

3. Power ON or REBOOT the Server.

Power on the server, not forgetting to select the CDROM BOOT source.

4. At the Welcome to the VMware ESXi 7.0.2 Installation

Select Install and follow the prompts.

5. Select Upgrade

Ensure that UPGRADE is selected.

6. Reboot the server.

At the end of the installation select reboot, to reboot the server

7. Check the server has been updated.

Check the server has been updated at the console, login to the Host Client, and check the build version.
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