Upgrade Hosts Interactively - VMware
docs.vmware.com › en › VMware-vSphereProcedure Insert the ESXi installer CD or DVD in the CD-ROM or DVD-ROM drive, or attach the Installer USB flash drive and restart the machine. Set the BIOS to boot from the CD-ROM device or the USB flash drive. In the Select a Disk panel, select the drive on which to install or upgrade ESXi and press Enter.
Upgrading ESXi Hosts - VMware
docs.vmware.com › en › VMware-vSphereTo upgrade ESXi 5.5 hosts or ESXi 6.0 hosts to ESXi 6.5, you can boot the ESXi installer from a CD, DVD, or USB flash drive. [Read more] Installing or Upgrading Hosts by Using a Script You can quickly deploy ESXi hosts by using scripted, unattended installations or upgrades.
Methods for upgrading to ESXi 5.1 (2032757) | VMware KB
kb.vmware.com › s › articleJun 23, 2014 · You can use a script to upgrade ESXi from a CD, DVD, or USB flash drive, or by PXE-booting the installer. You can also call a script from an interactive installation. See Installing, Upgrading, or Migrating Hosts Using a Script in the in the vSphere Upgrade Guide. vSphere Auto Deploy Auto Deploy is a new feature in vSphere 5.x.