linux内核怎么安装

在Linux系统上安装Linux内核头文件

Linux内核头文件是用于编译和链接与内核相关的程序的重要组件，它们包含了内核数据结构和函数声明，使得用户空间的程序可以访问内核提供的服务，本文将介绍如何在Linux系统上安装Linux内核头文件。

1、获取Linux内核源代码

你需要从内核官方网站下载最新的Linux内核源代码，打开终端，执行以下命令：

wget https://cdn.kernel.org/pub/linux/kernel/v5.x/linux-5.x.tar.gz

https://cdn.kernel.org/pub/linux/kernel/v5.x/是内核源代码的下载地址，linux-5.x.tar.gz是下载的文件名，请根据实际情况替换为最新版本的内核源代码。

2、解压内核源代码

下载完成后，使用以下命令解压内核源代码：

tar -zxvf linux-5.x.tar.gz

3、进入内核源代码目录

解压后，进入内核源代码目录：

cd linux-5.x

4、配置内核头文件

在内核源代码目录下，执行以下命令配置内核头文件：

make ARCH=x86_64 CROSS_COMPILE=x86_64_linux-gnuINSTALL_HDR_PATH=dest headers_install

ARCH是目标架构，CROSS_COMPILE是交叉编译器前缀，INSTALL_HDR_PATH是安装内核头文件的路径，请根据实际情况替换为相应的值。

5、安装内核头文件

配置完成后，执行以下命令安装内核头文件：

make ARCH=x86_64 CROSS_COMPILE=x86_64_linux-gnuINSTALL_HDR_PATH=dest headers_install

6、设置环境变量

为了方便使用内核头文件，需要将其所在的路径添加到环境变量中，编辑~/.bashrc文件，添加以下内容：

export INCLUDES=$PWD/dest/include/uapi:$PWD/dest/include/generated:$PWD/dest/include/linux:$PWD/dest/include/uapi/linux:$PWD/dest/include/generated/utsrelease.h:$PWD/dest/include/generated/autoconf.h:$PWD/dest/include/linux/version.h:$PWD/dest/include/generated/compiler.h:$PWD/dest/include/linux/compiler-gcc7.h:$PWD/dest/include/generated/utsrelease.h:$PWD/dest/include/generated/autoconf.h:$PWD/dest/include/linux/version.h:$PWD/dest/include/generated/compiler-gcc7.h:$PWD/dest/include/asm-generic:$PWD/dest/include/uapi:$PWD/dest/include:$PWD/dest/arch/x86_64:$PWD/dest/arch/x86:$PWD/dest/arch/arm64:$PWD/dest/arch/arm:$PWD/dest/arch/arm64:$PWD/dest//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD//arch//arm64:$PWD//arch//arm:$PWD