if _, err = Load(cfgFile, cfg); err != nil {
			if !osIsNotExist(err) && !osIsPermission(err) {
				return nil, err
			}
			continue
		}
		data, _ = json.Marshal(cfg)
		break
	}
	if osIsPermission(err) {
		logger.Info("Older config found but is not readable %s, proceeding to read config from other places", err)
	}
	if osIsNotExist(err) || osIsPermission(err) || len(data) == 0 {

				return nil, errUnformattedDisk
			}
			if osIsNotExist(err) {
				return nil, errDiskNotFound
			} else if osIsPermission(err) {
				return nil, errDiskAccessDenied
			}
			storageLogOnceIf(GlobalContext, err, "check-format-json") // log unexpected errors
			return nil, errCorruptedBackend
		} else if osIsPermission(err) {
			return nil, errDiskAccessDenied
		}

	fd, err := openFileWithFD(dirPath, readMode, 0o666)
	if err != nil {
		if osErrToFileErr(err) == errFileNotFound {
			return nil
		}
		if !osIsPermission(err) {
			return osErrToFileErr(err)
		}
		// There may be permission error when dirPath
		// is at the root of the disk mount that may
		// not have the permissions to avoid 'noatime'

func isSysErrTooManyFiles(err error) bool {
	return errors.Is(err, syscall.ENFILE) || errors.Is(err, syscall.EMFILE)
}

func osIsNotExist(err error) bool {
	return errors.Is(err, os.ErrNotExist)
}

func osIsPermission(err error) bool {
	return errors.Is(err, os.ErrPermission) || errors.Is(err, syscall.EROFS)
}

func osIsExist(err error) bool {
	return errors.Is(err, os.ErrExist)

// known errors into their typed form for top level
// interpretation.
func osErrToFileErr(err error) error {
	if err == nil {
		return nil
	}
	if osIsNotExist(err) {
		return errFileNotFound
	}
	if osIsPermission(err) {
		return errFileAccessDenied
	}
	if isSysErrNotDir(err) || isSysErrIsDir(err) {
		return errFileNotFound
	}
	if isSysErrPathNotFound(err) {
		return errFileNotFound
	}