| description: > | |
| Empty interface to indicate that the associated `Software.Version` should | |
| prevent a state transition of the associated managed element while the | |
| `Software.Version` is in `Activating` state. | |
| The specific state transition(s) to prevent are left to the implementation. | |
| A typical use of this would be to prevent (delay) the power-on of a | |
| managed host while the BIOS is being updated. The managed host, via | |
| systemd transitions, might start the power-on sequence and then wait for | |
| any object with this `ActivationBlocksTransition` interface to no longer be | |
| in `Activating` state. Causal ordering of dbus operations can prove that | |
| no update is currently being performed and the power-on sequence may safely | |
| continue. |