insmod kernel error

[virusshit]

hello.c:
#define MODULE 2.4.20-8smp
#include <linux/module.h>
int init_module(void){printk("<1>Hello World!");return 0;}
void cleanup_module(void){printk("<1>Goodbye cruel world!");}

After I compile a hello.c file into hello.o, I insmod hello.o
but find the error:
hello.o: kernel-module version mismatch
hello.o was compiled for kernel version 2.4.20
while this kernel is version 2.4.20-8.

why the error ? how to solve it?
thanks

[saintl]

/* How to compile:
* gcc -I /usr/src/linux-2.4/include -DMODULE -D__KERNEL__ -O2 -c hello.c
*/
#ifndef MODULE
#define MODULE
#endif
#ifndef __KERNEL__
#define __KERNEL__
#endif
#include <linux/kernel.h>
#include <linux/module.h>

int init_module(void)
{
printk(KERN_ALERT "Hello World!\n");
return 0; // Must return 0!
}

void cleanup_module(void)
{
printk(KERN_ALERT "Goodbye world!\n");
}

MODULE_LICENSE("GPL"); // Avoid "no license" warning.

[bekars]

编译的内核版本和现在运行的不一致

简单的方法，修改
/usr/include/linux/version.h
中
UTS_RELEASE 为 2.4.20-8

[223xh]

嗯
编译的时候要加入当前内核版本

[tb01412]

更简单的方法：在insmod的时候加上-f参数