@@ -1,10 +1,21 @@

 package image

-import "github.com/docker/docker/layer"

+import (

+	"runtime"

+

+	"github.com/Sirupsen/logrus"

+	"github.com/docker/docker/layer"

+)

 // TypeLayers is used for RootFS.Type for filesystems organized into layers.

 const TypeLayers = "layers"

+// typeLayersWithBase is an older format used by Windows up to v1.12. We

+// explicitly handle this as an error case to ensure that a daemon which still

+// has an older image like this on disk can still start, even though the

+// image itself is not usable. See https://github.com/docker/docker/pull/25806.

+const typeLayersWithBase = "layers+base"

+

 // RootFS describes images root filesystem

 // This is currently a placeholder that only supports layers. In the future

 // this can be made into an interface that supports different implementations.

@@ -25,5 +36,9 @@ func (r *RootFS) Append(id layer.DiffID) {

 // ChainID returns the ChainID for the top layer in RootFS.

 func (r *RootFS) ChainID() layer.ChainID {

+	if runtime.GOOS == "windows" && r.Type == typeLayersWithBase {

+		logrus.Warnf("Layer type is unsupported on this platform. DiffIDs: '%v'", r.DiffIDs)

+		return ""

+	}

 	return layer.CreateChainID(r.DiffIDs)

 }