Overview of the Upgrade process for ESXi host 6.5

You can upgrade a ESXi 5.5.x host or 6.0.x host, asynchronously released driver or other third-party customizations, interactive upgrade from CD or DVD, scripted upgrade, or upgrade with vSphere Update Manager. When you upgrade an ESXi 5.5.x host or 6.0.x host that has custom VIBs to version 6.5, the custom VIBs are migrated.High level steps for upgrading ESXi:

Image: VMware
Methods supported for direct upgrade to ESXi 6.5 are:
  • Use the interactive graphical user interface (GUI) installer from CD, DVD, or USB drive.
  • Scripted upgrade.
  • Use the esxcli command line interface (CLI).
  • vSphere Auto Deploy. If the ESXi 5.5.x host was deployed by using vSphere Auto Deploy, you can use vSphere Auto Deploy to reprovision the host with a 6.5 image.
  • vSphere Update Manager.

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