diff --git a/changelogs/unreleased/9807-Lyndon-Li b/changelogs/unreleased/9807-Lyndon-Li
new file mode 100644
index 000000000..58df214f7
--- /dev/null
+++ b/changelogs/unreleased/9807-Lyndon-Li
@@ -0,0 +1 @@
+Uploader interface for block data mover
\ No newline at end of file
diff --git a/pkg/podvolume/backupper_test.go b/pkg/podvolume/backupper_test.go
index fba789664..e6042ede1 100644
--- a/pkg/podvolume/backupper_test.go
+++ b/pkg/podvolume/backupper_test.go
@@ -396,7 +396,7 @@ func TestBackupPodVolumes(t *testing.T) {
 			},
 			uploaderType: "fake-uploader-type",
 			errs: []string{
-				"invalid uploader type 'fake-uploader-type', valid type: 'kopia'",
+				"invalid uploader type 'fake-uploader-type', valid types: 'kopia', 'velero-block'",
 			},
 		},
 		{
diff --git a/pkg/uploader/provider/block.go b/pkg/uploader/provider/block.go
index c38387744..b1eed428a 100644
--- a/pkg/uploader/provider/block.go
+++ b/pkg/uploader/provider/block.go
@@ -22,6 +22,7 @@ import (
 
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
+
 	"github.com/vmware-tanzu/velero/internal/credentials"
 	velerov1api "github.com/vmware-tanzu/velero/pkg/apis/velero/v1"
 	repokeys "github.com/vmware-tanzu/velero/pkg/repository/keys"
@@ -34,7 +35,6 @@ type blockProvider struct {
 	bkRepo        udmrepo.BackupRepo
 	credGetter    *credentials.CredentialGetter
 	log           logrus.FieldLogger
-	canceling     int32
 }
 
 // NewBlockUploaderProvider initialized with open or create a repository
@@ -100,8 +100,7 @@ func (bp *blockProvider) RunBackup(
 	volMode uploader.PersistentVolumeMode,
 	uploaderCfg map[string]string,
 	updater uploader.ProgressUpdater) (string, bool, int64, int64, error) {
-
-	return "", false, 0, 0, nil
+	return "", false, 0, 0, errors.New("block backup not implemented")
 }
 
 // TODO: implement in the following PRs
@@ -112,5 +111,5 @@ func (bp *blockProvider) RunRestore(
 	volMode uploader.PersistentVolumeMode,
 	uploaderCfg map[string]string,
 	updater uploader.ProgressUpdater) (int64, error) {
-	return 0, nil
+	return 0, errors.New("block restore not implemented")
 }
diff --git a/pkg/uploader/provider/block_test.go b/pkg/uploader/provider/block_test.go
index 3584e35f1..a48b0a862 100644
--- a/pkg/uploader/provider/block_test.go
+++ b/pkg/uploader/provider/block_test.go
@@ -121,7 +121,7 @@ func TestBlockProviderClose(t *testing.T) {
 	}
 
 	err := bp.Close(t.Context())
-	assert.NoError(t, err)
+	require.NoError(t, err)
 	mockBRepo.AssertExpectations(t)
 }
 
diff --git a/pkg/uploader/types.go b/pkg/uploader/types.go
index cc3321012..12ff1dc52 100644
--- a/pkg/uploader/types.go
+++ b/pkg/uploader/types.go
@@ -42,7 +42,7 @@ const (
 func ValidateUploaderType(t string) (string, error) {
 	t = strings.TrimSpace(t)
 	if t != KopiaType && t != BlockType {
-		return "", fmt.Errorf("invalid uploader type '%s', valid type: '%s'", t, KopiaType)
+		return "", fmt.Errorf("invalid uploader type '%s', valid types: '%s', '%s'", t, KopiaType, BlockType)
 	}
 
 	return "", nil
diff --git a/pkg/uploader/types_test.go b/pkg/uploader/types_test.go
index dcdedcd62..0ae93d912 100644
--- a/pkg/uploader/types_test.go
+++ b/pkg/uploader/types_test.go
@@ -23,7 +23,7 @@ func TestValidateUploaderType(t *testing.T) {
 		{
 			"'anything_else' is invalid",
 			"anything_else",
-			"invalid uploader type 'anything_else', valid type: 'kopia'",
+			"invalid uploader type 'anything_else', valid types: 'kopia', 'velero-block'",
 			"",
 		},
 	}