Upgrade to vSphere 5.1 – Part 1 – Upgrading a stand-alone host

Written by Pawel Lakomski on Wrzesień 14th, 2012

This is Part 1 of the series Upgrading to vSphere 5.1. Make sure to check out the other parts as well.

Part 1 – Upgrading a stand-alone host
Part 2 – Prerequisites for upgrading with Update Manager 1/2
Part 3 – Prerequisites for upgrading with Update Manager 2/2
Part 4 – Upgrading the hosts with Update Manager
Part 5 – Upgrading virtual machines
Part 6 – Upgrading datastores

VMware documentation on the upgrade can be found here.

The upgrade should be done according to VMware Migration Path in four steps:

  • vCenter Server
  • Hosts
  • Virtual Machines (VMtools and Hardware version)
  • VMFS datastores

 

This part shows how to upgrade a standalone host with ESXi installation iso.

  • Download the iso from vmware.com, burn it and insert to the server.
  • Shut down all your VMs and boot the server from the CD.
Booting to ESXi 5.1 installation / upgrade CD

Booting to ESXi 5.1 installation / upgrade CD

 

  • After the files are loaded, the installer will find VMFS partition. Press Enter to continue.
VMFS partition is found

VMFS partition is found

 

  • You will be presented with 3 options. Choose „Upgrade ESXi, preserver VMFS datastore”. Press Enter and F11 to confirm.
Choosing an upgrade or a fresh installation

Choosing an upgrade or a fresh installation

Confirm the upgrade

Confirm the upgrade

 

  • Have a cup of tea / coffee while the server is being upgraded.
  • When finished, you will get a confirmation message. Press Enter to reboot.
Upgrade is completed

Upgrade is completed

 

  • Enjoy upgraded ESXi server. Start you virtual machines and verify if everything’s fine.
ESXi reports version 5.1

ESXi reports version 5.1

 

This procedure can also be used when upgrading vCenter-managed hosts but we will do it with Update Manager in Part 4.

 

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  1. Upgrade to vSphere 5.1 - Part 2 - Prerequisites for upgrading vCenter Server: Single Sign-On | VirtuALL
  2. Upgrade to vSphere 5.1 - Part 3 - Prerequisites for upgrading with Update Manager 2/2 | VirtuALL
  3. Upgrade to vSphere 5.1 – Part 4 – Upgrading the hosts with Update Manager | VirtuALL
  4. Upgrade to vSphere 5.1 – Part 5 – Upgrading virtual machines | VirtuALL