MODULES-LOAD.D(5)                                                 modules-load.d                                                 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)

systemd 237                                                                                                                      MODULES-LOAD.D(5)