What Hypervisors have you tried LTM VE in?

This is just a follow-up to my earlier post regarding LTM VE on Open Source Xen.

 

 

For those people who have tried this and found that the license activation does not survive VM cold restarts or migration - problem solved.

 

 

It looks like the LTM VE kernel queries the hypervisor to request the UUID of the virtual machine it is running on.

 

This Xen feature can be used by a guest as a sort of DRM feature.

 

 

By default on Xen, a UUID is randomly generated upon every VM cold boot.

 

This can be nailed down in the VM config file using a statement like:

 

 

uuid = '74929553-f637-3dc3-7499-2184e93eb57b'

 

 

If you've activated a licence for a VE instance on Xen and found that after a restart you're presented with " License is not operational (expired or digital signature does not match contents)." look back through the logs in /var/log/xen to find the UUID the VM had when I licensed it. Just grep for 'uuid'.

 

 

Set the uuid property in the VM config file and restart.