insmod: ERROR: could not insert module HelloWorld.ko: Operation not permitted
12,302
So I had the same problem and this worked for me:
You need to disable Secure Boot using mokutil use the first answer in this link
Run the insmod command via sudo.
Good Luck.
Author by
kpk
4 years experienced software engineer with good experience in C,C++,Perl,Linux
Updated on July 26, 2022Comments
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kpk almost 2 years
I am trying to learn linux and kernel development.
I am able to build the module but am unable to load it.
HelloWorld.c
/* * hello-1.c - The simplest kernel module. */ #include <linux/module.h> /* Needed by all modules */ #include <linux/kernel.h> /* Needed for KERN_INFO */ int init_module(void) { printk(KERN_INFO "Hello world 1.\n"); /* * A non 0 return means init_module failed; module can't be loaded. */ return 0; } void cleanup_module(void) { printk(KERN_INFO "Goodbye world 1.\n"); }
And here is my make file:
KERNEL_SOURCE := /lib/modules/$(shell uname -r)/build PWD := $(shell pwd) obj-m += HelloWorld.o all: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) modules clean: make -C /lib/modules/$(shell uname -r)/build M=$(PWD) clean
while doing insmod for loading the module permission is getting denied. I tried even doing it with root and also with modprobe, but no use.
I also tried Link but issue still the same.
Hope i get some help. I am using ubuntu 18.04LTS.