Home » Kerio User Forums » Kerio Operator » Digium passthrough to Operator VM on ESXi (Digium passthrough to Operator VM on ESXi not working)

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I have Digium Analog 1A4B01F w/1 1X100MF in an ESXi v6 host I am attempting to passthrough to a Kerio Operator v2.4.4 P1 VM. The passthrough is setup and other VMs can see it. The Kerio Operator VM doesn't see "PCI device" listed, whereas other VM's do.

It appears to be a VM version issue. The Operator VM install sets it to version 4 whereas most of my other VMs are version 8 or higher.

After some research I found that the .VMX file can be modified to change the version #, albeit with the significant degree of non-boot risk. I am relatively new to VMWare, so manipulating config files by hand is not my first course of action.

For testing purposes, I changed the .VMX 'virtualHW.version = "4"' to 'virtualHW.version = "7"' but made no other changes. I booted the VM so it would read the new .VMX file. Sure enough, "PCI device" was listed but unavailable as the VM was running. I shut down the OS, went back into settings and was able to add a PCI device and choose the Digium card.

It failed to boot (not a real surprise) and ESXi provided no real diagnostic information. I reversed the changes I made to the .VMX file and Operator booted just fine and the system is working as before.

I have some documentation from my research that provides some insight to manually add a PCI device to a .VMX file, but honestly that seems a bit of a kludge.

Has anyone successfully implemented an Operator VM on ESXi and used a Digium analog card in passthrough? If so, what steps did you take?


Vladimir Toncar (Kerio)

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The better way to upgrade the virtual HW version is as follows:

1. Stop the virtual appliance in the ESXi console
2. Right-click on the appliance in the list of appliances on your ESXi server.
3. Choose the option "Upgrade Virtual Hardware".

Hope this helps,

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Yes, and that worked perfect. I hate it when I miss the obvious.

Thanks for the quick response!

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