LUFS 是一个混合用户空间文件系统框架，支持不定数量的对用户透明的文件系统（localfs, sshfs, ftpfs, httpfs, socketfs, freenetfs, 和nutellafs)。它可以被看作和VFS（虚拟文件系统转换）完成同样的内核功能：它是一个转换器，分布文件系统调用到支持它的文件系统。然而，LUFS文件系统是在用户空间中实现的。-driver is a mixed user-space file system framework, support for variable amounts of transparent to users of File System (localfs, sshfs, ftpfs, httpfs, socketfs, freenetfs and nutellafs). It can be seen and VFS (virtual file system) completion of the same core functions : it is a converter, called Distributed File System to support its file system. However, the driver file system is the user space to achieve.