How do you add an interface to a deployed machine?

Hi, I need to add an virtual interface to an existing server maas deployed? The physical server has 4 interfaces. I am only using one. The interface I need to add has no vlan’s associated with it.

MAAS is currently unable to reconfigure a machine after it has been deployed. You’ll either need to configure it manually on the machine or release it, configure networking with MAAS, and redeploy.

Thanks. I’ll give that a try. I’m hesitant to release it and loose all the data.