Linux kernal develop --1
1. install linux kernal source code
yum install kernel-headers kernel-devel

after install

/usr/src/kernels/kernalversion is not null

2. check your kernal version
uname -r

3.

#KVER = /usr/src/linux-source-2.6.38  KVER = /lib/modules/`uname -r`/build  CURDIR = $(shell pwd)  # Kernel modules  obj-m := hello.o  build: kernel_modules  kernel_modules:      $(MAKE) -C $(KVER) M=$(CURDIR) modules  clean:      $(MAKE) -C $(KVER) M=$(CURDIR) clean 

5.

insmod hello.ko

dmesg | tail查看，或者查看/var/logs/messages日志

sudo rmmod hello