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Is there some file in Linux that enumerates and describes mount options for file systems like /etc/services describes ports?

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  • Are you just looking for generic info or is this an indirect version of "How do I mount a filesystem of type [fill_in_the_blank] under Linux? If generic info I'd suggest a wiki search first, followed by a more specific question here - if you still have one.
    – hotei
    Aug 28, 2010 at 19:33
  • Generic info, so I found it in mount(8)
    – Rodnower
    Oct 19, 2010 at 20:47

2 Answers 2

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If you're asking for "Which filesystems are mounted, and how are they mounted?", the answer can be found by either reading /proc/mounts or running 'mount'.

If you're asking which mount options you have available for the different file systems, you need to check the man page for mount (mount(8)) - it has one section titled "FILESYSTEM SPECIFIC MOUNT OPTIONS", and one titled "FILESYSTEM INDEPENDENT MOUNT OPTIONS" which should give you a pretty good idea of what mount options are available and what they do.

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  • Thank you very much. I was should to search it in man mount by my self...
    – Rodnower
    Aug 28, 2010 at 19:20
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There is no machine-parsable file like /etc/services, as far as I know.

The most accessible human-readable documentation is the man page for the mount command.

Sometimes though the mount command is not completely up-to-date, there can be options that the kernel supports but not mount. The options supported by the kernel are documented in its documentation under Documentation/filesystems/. Options not supported by the mount command are typically experimental and best left alone in any case; but they sometimes appear in /proc/mounts when they are the names of options that are enabled by default and best not turned off.

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