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This article introduces you how to compile the kernel in CentOS system, the content is very detailed, interested friends can refer to it, I hope it can help you.

Introduction to Linux Kernel

At the top is the user (or application) space. This is where the user application executes. Below user space is kernel space, where the Linux kernel is located.

The GNU C Library (glibc) is also here. It provides a system call interface to the kernel and a mechanism to translate between user-space applications and the kernel. This is important because kernel and user-space applications use different protected address spaces. Each user-space process uses its own virtual address space, while the kernel occupies a separate address space.

The Linux kernel can be further divided into three layers. At the top is the system call interface, which implements basic functions such as read and write. Below the system call interface is kernel code, which can be more precisely defined as architecture-independent kernel code. This code is common to all processor architectures supported by Linux. Beneath this code is architecture-dependent code that forms part of what is commonly known as a Board Support Package (BSP). This code serves as processor and platform-specific code for a given architecture.

The Linux kernel implements many important architectural attributes. At a higher or lower level, the kernel is divided into subsystems. Linux can also be seen as a whole because it integrates all of these basic services into the kernel. This is different from the microkernel architecture, which provides basic services such as communication, I/O, memory, and process management, and more specific services that are inserted into the microkernel layer.

CentOS kernel compilation and

download a kernel

Download kernel from official website https://www.kernel.org/, I downloaded linux-3.13.7.tar.xz

copy code

The code is as follows:

cat /proc/version #Check out my kernel version first

copy code

The code is as follows:

cd /usr/src

wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.13.7.tar.xz

xz -d linux-*.tar.xz

tar xf linux-*.tar

cd linux-3.13.7

#Clear source tree and.config

make mrproper

At this time you may be wrong, will prompt the following

*** Unable to find the ncurses libraries or the

#Solution Installation

#centos

yum install ncurses-devel -y

#ubuntu

apt-get install ncurses-dev

custom kernel

copy code

The code is as follows:

make menuconfig #At least the network card, file system and sound card driver should be selected, and the configuration instructions are attached at the bottom.

Previous versions of #2.6 were, but now the kernel doesn't need to make dep anymore.

make dep

make bzlmage

make modules

make modules_install

make install

#Compile kernel

make

make bzImage #Compile the kernel image and you will be prompted as follows

#Kernel: arch/x86/boot/bzImage is ready

make modules #Compile kernel modules

make modules_install #Install kernel modules

#My 3.13.7 doesn't need too complicated configuration

make install #is installed directly, including kernel mapping,grub configuration do not need to be manually configured, it is automatically configured for you by scripts

Let's see, I executed make install, and what did install.sh do?

Now we can see that those tedious steps have been omitted for us, and all the scripts have been dried. In fact, the scripts do the following for us.

installation is complete

About how to compile the kernel in CentOS system to share here, I hope the above content can be of some help to everyone, you can learn more knowledge. If you think the article is good, you can share it so that more people can see it.

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