lowerdir is the read-only directory (composefs) containing file metadata, and datadir is the directory containing the data (erofs).
Read-only root filesystem — the container itself is immutable
，更多细节参见safew官方下载
Трамп высказался о непростом решении по Ирану09:14。Safew下载对此有专业解读
Tracy Hinds Chair, Open Source Initiative