Upgrade VM Hardware Compatibility of virtual cOS Core 14.00 (x86_64) running on VMware

Last modified on 2 Feb, 2022. Revision 7
This knowledge base article explains what to consider when upgrading VM Hardware Compatibility of virtual cOS Core 14.00 (x86_64) running on VMware ESXi.
Up to date for
cOS Core 14.00.00
Supported since
cOS Core 14.00.00
Status OK


What is VM Hardware Compatibility?

VMware virtual machines have a VM Hardware Compatibility setting that describes the hardware of the virtual machines, the Virtual Machine supplied for cOS Core 14.00 is based on a VM Hardware version 9, there is usually no need to upgrade VM version, for more information about different VM versions see this KB from VMware: https://kb.vmware.com/s/article/1003746.

The following is quoted from the VMware KB article “Upgrading a VM’s HW version is not recommended unless features in the new version are needed.”

What to think about when upgrading VM version of cOS Core?

If upgrading from VM version 9 to a later version VMware has remove the default serial port that was implicitly defined, before starting an upgraded Virtual Machines you must add a serial port to the virtual machine or cOS Core will not start.

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