return Arrays.stream(File.listRoots()).map(f -> {
            final FsObj fsObj = new FsObj();
            fsObj.path = f.getAbsolutePath();
            fsObj.free = f.getFreeSpace();
            fsObj.total = f.getTotalSpace();
            fsObj.usable = f.getUsableSpace();
            fsObj.used = fsObj.total - fsObj.usable;
            fsObj.percent = (short) (100 * fsObj.used / fsObj.total);
            return fsObj;