depmod man page on Manjaro

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DEPMOD(8)			    depmod			     DEPMOD(8)

       depmod - Generate modules.dep and map files.

       depmod [-b basedir] [-e] [-E Module.symvers] [-F] [-n] [-v]
	      [-A] [-P prefix] [-w] [version]

       depmod [-e] [-E Module.symvers] [-F] [-m] [-n] [-v]
	      [-P prefix] [-w] [version] [filename...]

       Linux kernel modules can provide services (called "symbols") for other
       modules to use (using one of the EXPORT_SYMBOL variants in the code).
       If a second module uses this symbol, that second module clearly depends
       on the first module. These dependencies can get quite complex.

       depmod creates a list of module dependencies by reading each module
       under /lib/modules/version and determining what symbols it exports and
       what symbols it needs. By default, this list is written to modules.dep,
       and a binary hashed version named modules.dep.bin, in the same
       directory. If filenames are given on the command line, only those
       modules are examined (which is rarely useful unless all modules are
       listed).	 depmod also creates a list of symbols provided by modules in
       the file named modules.symbols and its binary hashed version,
       modules.symbols.bin. Finally, depmod will output a file named
       modules.devname if modules supply special device names (devname) that
       should be populated in /dev on boot (by a utility such as

       If a version is provided, then that kernel version's module directory
       is used rather than the current kernel version (as returned by uname

       -a, --all
	   Probe all modules. This option is enabled by default if no file
	   names are given in the command-line.

       -A, --quick
	   This option scans to see if any modules are newer than the
	   modules.dep file before any work is done: if not, it silently exits
	   rather than regenerating the files.

       -b basedir, --basedir basedir
	   If your modules are not currently in the (normal) directory
	   /lib/modules/version, but in a staging area, you can specify a
	   basedir which is prepended to the directory name. This basedir is
	   stripped from the resulting modules.dep file, so it is ready to be
	   moved into the normal location. Use this option if you are a
	   distribution vendor who needs to pre-generate the meta-data files
	   rather than running depmod again later.

       -C, --config file or directory
	   This option overrides the default configuration directory at

       -e, --errsyms
	   When combined with the -F option, this reports any symbols which a
	   module needs which are not supplied by other modules or the kernel.
	   Normally, any symbols not provided by modules are assumed to be
	   provided by the kernel (which should be true in a perfect world),
	   but this assumption can break especially when additionally updated
	   third party drivers are not correctly installed or were built

       -E, --symvers
	   When combined with the -e option, this reports any symbol versions
	   supplied by modules that do not match with the symbol versions
	   provided by the kernel in its Module.symvers. This option is
	   mutually incompatible with -F.

       -F, --filesyms
	   Supplied with the produced when the kernel was built,
	   this allows the -e option to report unresolved symbols. This option
	   is mutually incompatible with -E.

       -h, --help
	   Print the help message and exit.

       -n, --dry-run
	   This sends the resulting modules.dep and the various map files to
	   standard output rather than writing them into the module directory.

	   Some architectures prefix symbols with an extraneous character.
	   This specifies a prefix character (for example '_') to ignore.

       -v, --verbose
	   In verbose mode, depmod will print (to stdout) all the symbols each
	   module depends on and the module's file name which provides that

       -V, --version
	   Show version of program and exit. See below for caveats when run on
	   older kernels.

	   Warn on duplicate dependencies, aliases, symbol versions, etc.

       This manual page originally Copyright 2002, Rusty Russell, IBM
       Corporation. Portions Copyright Jon Masters, and others.

       depmod.d(5), modprobe(8), modules.dep(5)

       Jon Masters <>

       Robby Workman <>

       Lucas De Marchi <>

kmod				  04/06/2014			     DEPMOD(8)

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