Hi Zhangyi, Please let me ask a simple question about fsck.overlay, is it possible to run any kernel version of overlayfs? I know some advanced features are only implemented in high kernel version, I just want to make sure if the common check and repair functions are available for 4.4 kernel? Any conditions? Thanks, Chengguang. -- To unsubscribe from this list: send the line "unsubscribe linux-unionfs" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html