Maybe the deviceNode check isn't necessary.

src/modules/partition/core/DeviceModel.cpp

@@ -107,9 +107,6 @@ DeviceModel::swapDevice( Device* oldDevice, Device* newDevice )
 {
     Q_ASSERT( oldDevice );
     Q_ASSERT( newDevice );
-    cDebug() << "swapDevice\nOLD DEVICE:" << oldDevice->deviceNode()
-             << "\nNEW DEVICE:" << newDevice->deviceNode();
-    Q_ASSERT( oldDevice->deviceNode() == newDevice->deviceNode() );
 
     int indexOfOldDevice = m_devices.indexOf( oldDevice );
     if ( indexOfOldDevice < 0 )