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• When base image update has been performed (e.g. Windows patches applied to the golden master image) then on vm restart there is a need of pointing the VM at the new golden master.
• We need to be able to update existing VMs with a new base image to support the pooled desktop.
• Since the template should be immutable, if the new version of template is created, then it is another template. So vm should boot up using the new template.
• Adding to this, we should have a method to reset a vm on reboot, i.e, discard the root disk and create a new one whenever the vm is rebooted.
• Currently we support base image updation update and reset a vm on reboot for the VMs deployed using templates.

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But this causes problem due to the change of ipaddress.To persist the network identity of the existing VMs even after base image updation update this feature can be used.

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