Ubuntu Compile and Install Linux Kernel

最新推荐文章于 2022-09-17 22:12:07 发布

gannicus.guo

最新推荐文章于 2022-09-17 22:12:07 发布

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分类专栏： Ubuntu 文章标签： Ubuntu Linux Kernel Compile Install

本文链接：https://blog.youkuaiyun.com/pro_human/article/details/102716943

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本文详细介绍从获取Linux内核源代码到定制配置、编译、安装全过程。涵盖下载源码、依赖安装、配置选择、编译技巧及模块与内核安装步骤。

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Get Linux kernel source code from www.kernel.org

I choose linux-4.14.150.tar.gz to download the tarball
screen capture of www.kernel.org

decompress the tarball

 tar -xvf linux-4.14.150.tar.xz

Install build dependency tools

sudo apt-get install build-essential libncurses-dev bison flex libssl-dev libelf-dev

Linux kernel default configuration
Linux kernel default configuration is named as
xxx_defconfig under arch/ folder,

cd  linux-4.14.150/arch
find -name *defconfig | grep x86 -i

you will see following search results

./x86/configs/x86_64_defconfig
./x86/configs/i386_defconfig
./um/configs/x86_64_defconfig

the x86_64_defconfig only contains the basic features, if to support multiple device drivers, it is better to use the current kernel configuration on ubuntu system

Customize kernel configuration

cd  linux-4.14.150
cp /boot/config-4.8.0+ .config
make menuconfig

using exist ubuntu 4.8.0 config, then make menuconfig to customize specific kernel configuration you want
screen cap for make menuconfig

Compile Linux Kernel

cd  linux-4.14.150
make

or to speed up compiling use “make -j4”, here i use “make” to easy track the first scene if any bug happens during compiling
screen cap make started if finished compiling Linux kernel, following messages will be shown in your terminal

screen cap for finish kernel compilation

Install Linux kernel modules

sudo make modules_install

在这里插入图片描述

Install Linux kernel

sudo make install

you will see following messages shown in the terminal for boot menu entry generation

sh ./arch/x86/boot/install.sh 4.14.150 arch/x86/boot/bzImage \
	System.map "/boot"
run-parts: executing /etc/kernel/postinst.d/apt-auto-removal 4.14.150 /boot/vmlinuz-4.14.150
run-parts: executing /etc/kernel/postinst.d/initramfs-tools 4.14.150 /boot/vmlinuz-4.14.150
update-initramfs: Generating /boot/initrd.img-4.14.150
run-parts: executing /etc/kernel/postinst.d/unattended-upgrades 4.14.150 /boot/vmlinuz-4.14.150
run-parts: executing /etc/kernel/postinst.d/update-notifier 4.14.150 /boot/vmlinuz-4.14.150
run-parts: executing /etc/kernel/postinst.d/zz-update-grub 4.14.150 /boot/vmlinuz-4.14.150
Sourcing file `/etc/default/grub'
Generating grub configuration file ...
Found linux image: /boot/vmlinuz-5.0.0-27-generic
Found initrd image: /boot/initrd.img-5.0.0-27-generic
Found linux image: /boot/vmlinuz-5.0.0-23-generic
Found initrd image: /boot/initrd.img-5.0.0-23-generic
Found linux image: /boot/vmlinuz-4.14.150
Found initrd image: /boot/initrd.img-4.14.150
Found linux image: /boot/vmlinuz-4.8.0+
Found initrd image: /boot/initrd.img-4.8.0+
Adding boot menu entry for EFI firmware configuration
done