• List all loaded kernel modules:

    • kldstat

  • Load a module from the command line:

    • kldload <module>

    NOTE:
    If the module is in the module search path, then just specifying the module name is ok, otherwise you must include the full path to the module, for example:

    kldload /usr/local/modules/my_module.ko

  • Unload a module from the command line:

    • kldunload <module>

  • Load a module at boot time:

    • Add: <module>_load=”YES” in /boot/loader.conf

    For example, to load the module aesni at boot, add the following to /boot/loader.conf:

    aesni_load="YES"

  • List the module search path

    • kldconfig -r

  • Change the module search path

    • To make permanent changes, specify the path(s) using module_path in /boot/loader.conf, for example:

    module_path="/boot/kernel;/boot/modules;/usr/local/modules"

    To make changes on-the-fly use kldconfig (changes will be lost on reboot):

    # add path(s) at the end of the list
kldconfig -m <path> ...

# add path(s) at the beginning of the list
kldconfig -mi <path> ...

# replace all the paths with the specified path(s)
kldconfig <path> ...

# remove a path 
kldconfig -d <path>