Upgrading the ESXI host to version 6.5 can be performed by using the host upgrade baselines with the Update Manager tool. Make sure that the hardware and software used meet the minimum requirements, as follows:
- 64-bit x86 processors, released after September 2006
- At least two CPU cores
- NX/XD bit, to be enabled for the CPU in the BIOS
- A minimum of 4 GB of physical RAM
- Intel VT-x or AMD RVI, enabled on x64 CPUs to support 64-bit VMs
- 1 GB or faster Ethernet controllers
To avoid issues due to unsupported hardware (for instance,
ESXI host 6.5 doesn't have the driver for Realtek NICs), it is always best to check the VMware Compatibility Guide at
https://www.vmware.com/resources/compatibility before starting the upgrade procedure. ...