NAME

       depmod.d - Configuration directory for depmod

SYNOPSIS

       /etc/depmod.d/*.conf

       /run/depmod.d/*.conf

       /usr/local/lib/depmod.d/*.conf

       /usr/lib/depmod.d/*.conf

       /lib/depmod.d/*.conf

DESCRIPTION

       On  execution depmod reads the configuration files from the above location and based on that it processes
       the available modules and their dependencies. For example: one  can  change  the  search  order,  exclude
       folders, override specific module's location and more.

       This is typically useful in cases where built-in kernel modules are complemented by custom built versions
       of  the  same  and  the  user wishes to affect the priority of processing in order to override the module
       version supplied by the kernel.

CONFIGURATION FORMAT

       The configuration files contain one command per line, with  blank  lines  and  lines  starting  with  '#'
       ignored  (useful for adding comments). A '\' at the end of a line causes it to continue on the next line,
       which makes the files a bit neater.

       See the COMMANDS section below for more.

CONFIGURATION DIRECTORIES AND PRECEDENCE

       Configuration files are read from directories in listed in SYNOPSIS in that order of precedence.  Once  a
       file of a given filename is loaded, any file of the same name in subsequent directories is ignored.

       All  configuration  files  are sorted in lexicographic order, regardless of the directory they reside in.
       Configuration files can either be completely replaced (by having a new configuration file with  the  same
       name  in  a  directory  of higher priority) or partially replaced (by having a configuration file that is
       ordered later).

COMMANDS

       search subdirectory...
           This allows you to specify the order in which /lib/modules  (or  other  configured  module  location)
           subdirectories  will  be  processed  by  depmod.  Directories  are  listed in order, with the highest
           priority given to the first listed directory and the lowest priority  given  to  the  last  directory
           listed.  The  special  keyword  built-in  refers  to the standard module directories installed by the
           kernel. Another special keyword external refers to the list of external directories, defined  by  the
           external command.

           By default, depmod will give a higher priority to a directory with the name updates using this built-
           in  search  string:  "updates  built-in"  but  more complex arrangements are possible and are used in
           several popular distributions.

       override modulename kernelversion modulesubdirectory
           This command allows you to override which version of a specific module will be used  when  more  than
           one  module  sharing  the same name is processed by the depmod command. It is possible to specify one
           kernel or all kernels using the * wildcard. modulesubdirectory is the name of the subdirectory  under
           /lib/modules (or other module location) where the target module is installed.

           For  example,  it  is  possible  to  override  the  priority of an updated test module called kmod by
           specifying the following command: "override kmod * extra". This will ensure that any matching  module
           name  installed under the extra subdirectory within /lib/modules (or other module location) will take
           priority over any likenamed module already provided by the kernel.

       external kernelversion absolutemodulesdirectory...
           This specifies a list of directories, which will be checked according to the priorities in the search
           command. The order matters also, the first directory has the higher priority.

           The kernelversion is a POSIX regular expression or * wildcard, like in the override.

       exclude excludedir
           This specifies the trailing directories that will be excluded during the search for kernel modules.

           The excludedir is the trailing directory to exclude.

COPYRIGHT

       This manual page Copyright 2006-2010, Jon Masters, Red Hat, Inc.

SEE ALSO

       depmod(8)

BUGS

       Please direct any bug reports to kmod's  issue  tracker  at  https://github.com/kmod-project/kmod/issues/
       alongside with version used, steps to reproduce the problem and the expected outcome.

AUTHORS

       Numerous  contributions have come from the linux-modules mailing list <linux-modules@vger.kernel.org> and
       Github. If you have a clone of kmod.git itself, the output of git-shortlog(1) and git-blame(1)  can  show
       you the authors for specific parts of the project.

       Lucas De Marchi <lucas.de.marchi@gmail.com> is the current maintainer of the project.

kmod                                               2025-06-11                                        DEPMOD.D(5)