Open Source Software

modules-load.d(5)



NAME

   modules-load.d - Configure kernel modules to load at boot

SYNOPSIS

   /etc/modules-load.d/*.conf

   /run/modules-load.d/*.conf

   /usr/lib/modules-load.d/*.conf

DESCRIPTION

   systemd-modules-load.service(8) reads files from the above directories
   which contain kernel modules to load during boot in a static list. Each
   configuration file is named in the style of
   /etc/modules-load.d/program.conf. Note that it is usually a better idea
   to rely on the automatic module loading by PCI IDs, USB IDs, DMI IDs or
   similar triggers encoded in the kernel modules themselves instead of
   static configuration like this. In fact, most modern kernel modules are
   prepared for automatic loading already.

CONFIGURATION FORMAT

   The configuration files should simply contain a list of kernel module
   names to load, separated by newlines. Empty lines and lines whose first
   non-whitespace character is # or ; are ignored.

CONFIGURATION DIRECTORIES AND PRECEDENCE

   Configuration files are read from directories in /etc/, /run/, and
   /lib/, in order of precedence. Each configuration file in these
   configuration directories shall be named in the style of filename.conf.
   Files in /etc/ override files with the same name in /run/ and /lib/.
   Files in /run/ override files with the same name in /lib/.

   Packages should install their configuration files in /lib/. Files in
   /etc/ are reserved for the local administrator, who may use this logic
   to override the configuration files installed by vendor packages. All
   configuration files are sorted by their filename in lexicographic
   order, regardless of which of the directories they reside in. If
   multiple files specify the same option, the entry in the file with the
   lexicographically latest name will take precedence. It is recommended
   to prefix all filenames with a two-digit number and a dash, to simplify
   the ordering of the files.

   If the administrator wants to disable a configuration file supplied by
   the vendor, the recommended way is to place a symlink to /dev/null in
   the configuration directory in /etc/, with the same filename as the
   vendor configuration file. If the vendor configuration file is included
   in the initrd image, the image has to be regenerated.

EXAMPLE

   Example 1. /etc/modules-load.d/virtio-net.conf example:

       # Load virtio-net.ko at boot
       virtio-net

SEE ALSO

   systemd(1), systemd-modules-load.service(8), systemd-delta(1),
   modprobe(8)



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