@@ -760,7 +760,7 @@ func NewDaemon(config *Config, registryService *registry.Service) (daemon *Daemo

 	migrationStart := time.Now()

 	if err := v1.Migrate(config.Root, graphDriver, d.layerStore, d.imageStore, referenceStore, distributionMetadataStore); err != nil {

-		return nil, err

+		logrus.Errorf("Graph migration failed: %q. Your old graph data was found to be too inconsistent for upgrading to content-addressable storage. Some of the old data was probably not upgraded. We recommend starting over with a clean storage directory if possible.", err)

 	}

 	logrus.Infof("Graph migration to content-addressability took %.2f seconds", time.Since(migrationStart).Seconds())

@@ -32,7 +32,7 @@ func (ls *layerStore) CreateRWLayerByGraphID(name string, graphID string, parent

 	}

 	if !ls.driver.Exists(graphID) {

-		return errors.New("graph ID does not exist")

+		return fmt.Errorf("graph ID does not exist: %q", graphID)

 	}

 	var p *roLayer

@@ -282,7 +282,8 @@ func migrateContainers(root string, ls graphIDMounter, is image.Store, imageMapp

 		}

 		if err := ls.CreateRWLayerByGraphID(id, id, img.RootFS.ChainID()); err != nil {

-			return err

+			logrus.Errorf("migrate container error: %v", err)

+			continue

 		}

 		logrus.Infof("migrated container %s to point to %s", id, imageID)