How do I load a kernel module?
Loading a Module
- To load a kernel module, run modprobe module_name as root .
- By default, modprobe attempts to load the module from /lib/modules/kernel_version/kernel/drivers/ .
- Some modules have dependencies, which are other kernel modules that must be loaded before the module in question can be loaded.
Which command can both load and unload kernel modules?
rmmod
To unload a kernel module, we use the rmmod (remove module) command.
How to load and unload kernel modules in Linux?
How to Load and Unload (Remove) Kernel Modules in Linux. To load a kernel module, we can use the insmod (insert module) command. Here, we have to specify the full path of the module. The command below will insert the speedstep-lib.ko module. # insmod /lib/modules/4.4.0-21-generic/kernel/drivers/cpufreq/speedstep-lib.ko
How to change the version of a kernel module?
All will be good if your .config file matches your kernel’s configuration, so grab it from /boot: 3. Set the version string Kernel module versioning relies on a version string that is compiled into each kernel module. If the version string does not match your kernel’s version then the module cannot be loaded.
What happens if you change symbols in a kernel?
Do not change exported symbols if other kernel modules depend on the code you are changing, unless you also rebuild the modules that depend on yours. Your modified modules will not be cryptographically signed and will taint the kernel if your distro kernel package is signed.
What does modprobe do in the Linux kernel?
modprobe is an intelligent command for listing, inserting as well as removing modules from the kernel. It searches in the module directory /lib/modules/$ (uname -r) for all the modules and related files, but excludes alternative configuration files in the /etc/modprobe.d directory.