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Upgrading to vCenter Server 5.5 on a Microsoft Windows platform (2058275)

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This article provides step-by-step guidance for upgrading to vCenter Server 5.5 using the Custom Install method.
This article assumes that:

Important: Having the services located on multiple Microsoft Windows servers increases the complexity of maintaining the environment. Additional complexity comes in the form of administration overhead and licensing costs. In addition, this configuration introduces points of failure, such as network connectivity and name resolution related issues which may involve engaging additional vendors during outages and maintenance windows. Please make sure that your infrastructure is configured in a redundant manner and you allocate appropriate resources considering these factors.


Upgrade steps for vCenter Server 5.5

  1. Mount the vSphere 5.5 installation media. The installation wizard appears.
  2. In the left pane, under Custom Install, click vCenter Server and then click Install.

    Note: If any of the prerequisites are not met, they are listed in the right pane under Prerequisites.

  3. Select the appropriate language from the dropdown and the click OK.
  4. In the welcome screen, click Next. If a previous version of vCenter Server is installed, the welcome screen displays the message:

    An earlier version of vCenter Server is already installed on this computer and will be upgraded to vCenter Server 5.5.0

  5. Review the End User License Agreement. If you agree, select the I accept the terms in the license agreement option, and click Next.
  6. In the license key screen, enter your license key and then click Next.
  7. Click Yes to proceed.
    Note: You can view your license keys in My VMware. For more information, see Viewing license keys in My VMware (2006831). If you do not enter a license key, you can proceed with a 60 Day Evaluation license and you see a popup, which prompts you to acknowledge that you are proceeding without a license. 

  8. Enter the database user name and password for the existing database and click Next.
  9. Select one of these options when prompted with the database upgrade warning:

    • Upgrade existing vCenter Server database.

      Note: You must acknowledge that a backup has been taken of the vCenter Server database and SSL certificates.

    • Do not upgrade the existing vCenter Server database.

  10. Click Next.
  11. Select whether you want to automatically or manually upgrade the vCenter Agents that are installed on ESXi hosts.
  12. Select the user type that the vCenter Server should run with and click Next. You can use one of these options:

    • Use Windows Local System Account
    • Use an alternate account

  13. Optionally, provide an alternative TCP port number for the VMware VirtualCenter Server service and click Next.

    • To check for available port numbers, run the netstat -a command in an elevated command line. 
    • Changing the default ports is recommended only if you have an unchangeable port conflict on the same system.

  14. Select one of these inventory sizes, depending on environmental requirements:

    • Small (less than 100 hosts or 1000 virtual machines)
    • Medium (100-400 hosts or 1000-4000 virtual machines)
    • Large (more than 400 hosts or 4000 virtual machines)

  15. Click Next.
  16. Enter the SSO Lookup Service URL and SSO administrator username and password. You may be prompted to install the Lookup Service Certificate.

    • This dialog shows information related to a domain by the name vsphere.local. This is not a domain that is auto-detected within the existing environment, but a net new domain used internally by vSphere. The administrator@vsphere.local account performs the same function as the admin@System-Domain account in previous versions of vSphere.

      For more information about the administrator@vsphere.local account, see the vSphere Software Components section of the vCenter Server and Host Management Guide.

    • You must use the Fully Qualified Domain Name (FQDN) and not the IP address.  Providing the IP address may allow you to proceed with the upgrade, but may result in certificate related errors when starting vCenter Server. 

    • If you are configuring a HA SSO configuration, you must provide the FQDN of the load balancer. Providing the FQDN of a single node may allow you to proceed with the upgrade, but may result in certificate related errors when starting vCenter Server. 

  17. Click Next.
  18. When prompted, verify the fingerprint of the certificate and click Yes.
  19. In the dialog that appears, check if the Fully Qualified Domain Name (FQDN) of the vCenter Inventory Service URL and port number are displayed. These fields are auto-populated.

    • If the FQDN is not auto-populated, enter the FQDN manually.
    • The default port is 10443.

  20. Click Next.
  21. Optionally, provide an alternative installation location and then click Next.

    • The installation path of vCenter Server must be compatible with the installation requirements for Microsoft Active Directory Application Mode (ADAM/AD LDS). The installation path cannot contain non-ASCII characters, commas (,), periods (.), exclamation marks (!), pound signs (#), at signs (@), or percentage signs (%).

    • The path must conform to NTFS naming restrictions.  For more information, see the Microsoft TechNet article Naming Files, Paths, and Namespaces.

    • The installation requires 4 GB of disk space to be available. For more information, see the Hardware Requirement for vCenter Server, the vSphere Web Client, vCenter Inventory Service, and vCenter Single Sign-On section in the vSphere Installation and Setup Guide.

  22. In the Ready to Install screen, click Install.
  23. When the installation completes, click Finish.

Post upgrade of vCenter Server 5.5

After installing vCenter Server:

See Also

Request a Product Feature

To request a new product feature or to provide feedback on a VMware product, please visit the Request a Product Feature page.


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  • 8 Ratings