Upgrade Free VMware ESXi 4.0 to ESXi 5.0

VMware ESXi 5.0 is now called VMware vSphere Hypervisor, but as before is free to download and use.

Upgrading from VMware ESXi 4.0 to VMware ESXi 5.0 is pretty easy and straight forward:

  • As always, before you proceed with an upgrade, make sure you have up to date backups
  • Go to www.vmware.com login to your WMvare account (if you don't have an account, registration is free) and download free VMware vSphere Hypervisor (CD ISO). Make sure you save provided license key.
    Download VMware vSphere Hypervisor
  • Burn downloaded installation ISO file to a CD
  • Shut down all virtual machines and shut down Wmvare host

  • Boot from installation CD
  • Wait for setup to load all files. This may take a little while
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Press ENTER to begin setup
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • PRESS F11 to accept license agreement
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Select partition where  VMware ESXi 4.0 is installed and press ENTER to continue
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • If in previous step you are unsure where VMware ESXi 4.0 is installed press F1 to display more details.
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Select first option (Upgrade ESXi, preserve VMFS datastore) and press ENTER to continue
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Review confirmation message and press F11 to begin the upgrade
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Upgrade normally takes about 10 minutes.
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Once finished press ENTER to reboot
    Upgrading VMware ESXi 4.0 to ESXi 5.0
  • Server will reboot and load the upgraded VMware ESXi 5.0 version
    VMware ESXi 5.0
  • Browser to server's IP address and download vSphere Client v5 (old v4 client will not work anymore)
    Download vSphere Client v5
  • Install vSphere Client v5 and connect to your host
    vSphere Client v5
  • You will be reminded that within 60 days you must update your license key
    vSphere Client v5
  • Start your virtual machines
    VMware ESXi 5.0

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