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Upgrading VMware ESXi from 5.X to 6.X

Upgrading VMware ESXi from 5.X to 6.X

Upgrading VMware ESXi from 5.X version to 6.X version is an easy task. You can upgrade it using CD/DVD drive or USB flash drive. In our last post, we installed VMware ESXi

( in case if you have not followed.

Today, we will upgrade ESXi from 5.X to 6.X. Below are the steps.

  • Download Vmware ESXi 6.X on a CD/DVD Drive.
  • Restart your ESXi Machine and enter BIOS Menu
  • Change the priority of CD/DVD on top of Hard Drive and save the configuration
  • Restart your ESXi Machine and let the server boot from CD/DVD Drive
  • Select “ESXi-6.X.X-XXXXXXX-Standard-Installer” on the Screen and hit Enter
  • Wait for a while until it prompts you for “Welcome to the VMware ESXi 6.X.X Installation” screen
  • Hit Enter to Continue
  • Press “F11” to Accept and Continue
  • Select the virtual hard disk where you want to install.
  • Hit Enter to continue
  • Select option “Upgrade ESXi, preserve VMFS datastore” in order to retain old VMFS partition as it has our Virtual machines.
  • Press “F11” to Confirm Upgrade and start with the upgrade.
  • Wait for sometime until it prompts you “The system has been successfully upgraded to ESXi 6.X”
  • Remove CD/DVD from the ESXi Server
  • Hit Enter to Reboot

Your system has been upgraded to 6.X version now.

Published by Team UC Collabing

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Electrical Engineer CCNA Collaboration CCNA Voice CCNA R&S. I'm Electrical Engineer and I work like Support Engineer for a Telephony Service Provider Company. Before that I had position like Pre-Sale Engineer about small and medium multivendor telephony solutions. I have 5 years of experience working in Telephony Multivendor Projects. I am also 3 years of experience working in Support and implementation about Cisco Collaboration platforms: UCS server, UCM, Cisco Unity, Presence Server, Jabber, Gateway. Support Community is most useful in finding design, implementation and support tricks and shortcuts that greatly help me in my daily activities. If you need to contact me, please you can writte me.


CCNA Routing and Switching
Am a technology enthusiast. I work in network support providing support with implementation, maintaining and precisely troubleshooting the infra.
Realm of collaboration makes me want to learn and face new challenges more and more.