config AUTOFS_FS tristate "Kernel automounter support" help The automounter is a tool to automatically mount remote file systems on demand. This implementation is partially kernel-based to reduce overhead in the already-mounted case; this is unlike the BSD automounter (amd), which is a pure user space daemon. To use the automounter you need the user-space tools from the autofs package; you can find the location in <file:Documentation/Changes>. You also want to answer Y to "NFS file system support", below. If you want to use the newer version of the automounter with more features, say N here and say Y to "Kernel automounter v4 support", below. To compile this support as a module, choose M here: the module will be called autofs. If you are not a part of a fairly large, distributed network, you probably do not need an automounter, and can say N here.