modules-load.d - Configure kernel modules to load at boot
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/
.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
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 files are read from directories in /etc/, /run/, and /usr/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 /usr/lib/. Files in /run/
override files with the same name in /usr/lib/.
Packages should install their configuration files in /usr/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 1. /etc/modules-load.d/virtio-net.conf example:
# Load virtio-net.ko at boot