Merge pull request #1512 from giuseppe/mount-program-disable-check

overlay: allow unknown backing fs with mountProgram
containers · Feb 22, 2023 · 0697414 · 0697414
2 parents cfffdac + b9f1697
commit 0697414
Showing 1 changed file with 4 additions and 1 deletion.
diff --git a/drivers/overlay/overlay.go b/drivers/overlay/overlay.go
@@ -315,7 +315,10 @@ func Init(home string, options graphdriver.Options) (graphdriver.Driver, error)
 	}
 	fsName, ok := graphdriver.FsNames[fsMagic]
 	if !ok {
-		return nil, fmt.Errorf("filesystem type %#x reported for %s is not supported with 'overlay': %w", fsMagic, filepath.Dir(home), graphdriver.ErrIncompatibleFS)
+		if opts.mountProgram == "" {
+			return nil, fmt.Errorf("filesystem type %#x reported for %s is not supported with 'overlay': %w", fsMagic, filepath.Dir(home), graphdriver.ErrIncompatibleFS)
+		}
+		fsName = "<unknown>"
 	}
 	backingFs = fsName