Module not found when I do a modprobe

Question

I am trying to install this module: https://github.com/mkottman/acpi_call

I did a make, make install.

I then saw acpi_call.ko is in /lib/modules/4.3.3-5-default/extra/ .

When I do a

modprobe acpi_call

I get

modprobe: FATAL: Module acpi_call not found in directory /lib/modules/4.3.3-5-default

Tried putting acpi_call.ko in /lib/modules/4.3.3-5-default but got the same result.

I would like to make it persistent so that when I reboot, module is loaded. I think it's possible only with modprobe.

Answer 1

If the module.ko file is really under /lib/modules/4.3.3-5-default/extra/ and 4.3.3-5-default is indeed your current kernel version, then the problem may simply be that you need to run depmod to re-create the module dependency list. Run:

sudo depmod

and try again to modprobe the module.

Answer 2

My solution is unique, but in my system I rebuilt the kernel and took out a module. I installed the vendors module and could not get the system to boot using the vendors module. In my case I forgot to move all the /lib/modules info, so modules.builtin still had the module, that I was upgrading. Manually removing the module from modules.builtin and doing the depmod -a fixed my problem.

Answer 3

Try running make && sudo make install in the source directory. That should install the module in the right place using the Makefile that comes with your kernel headers.