For upgrading present kernel to linux-next kernel, we need to follow below steps.

1. Check present kernel version:

Check which kernel you have, by running the following command. This should print the version of the kernel that you are using

uname -r

Saving present kernel version in present-version.txt

uname -r > present-version.txt

2. Install required packages:  like "git, make, tar, gcc, bc, patch, dos2unix, wget, xz"

Use below commands based on Linux distro.

zypper --non-interactive install git make tar gcc bc patch dos2unix wget xz

yum install -y git make tar gcc bc patch dos2unix wget xz

apt-get install -y git make tar gcc bc patch dos2unix wget

3. Download linux-next kernel from git.

git clone git://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git

It will download the code into linux-next directory.

cd linux-next/

4. Creating the .config file.

Creating new .config file based on a previous .config file

if you have an existing configuration from an older kernel, copy the old .config file in to linux-next directory as ".config"(recommended way)

cp /boot/config-`uname -r` .config

if old configuration file  not exists, you can create a .config file by running below command

yes "" | make oldconfig

5. Modifications in “.config” file:

a. Enabling HyperV support:

Recent changes to kernel requires setting “CONFIG_HYPERVISOR_GUEST” to enable all guest virtualization drivers. So we need to add CONFIG_HYPERVISOR_GUEST=y to .config file.

CONFIG_HYPERVISOR_GUEST=y

b. Enable Ext4 support:

Ext3 is enabled by default, but in some distros Ext4 is not enable by default.

CONFIG_EXT4_FS=y

6. Configure the kernel options:

This “oldconfig” process will carry over your previous settings, and prompt you if there are new features not covered by your earlier .config file

yes "" | make oldconfig

7. Build the kernel:

Now compile the actual kernel. This can take more than 20 minutes to complete

Based on the processor count, we can run make cmd

make -j`nproc` (running “nproc” processes at a time)

Check make command executed successfully or not.

8. Following changes are needed on OpenSUSE, other distributions may not need this step:

Removing any scsi_id references in /etc/default/grub and /etc/default/grub_installdevice files

and then run "grub2-mkconfig"

grub2-mkconfig

9. Building the kernel modules:

a. Make the modules: Modules are parts of the kernel that are loaded on the fly, as they are needed. They are stored in individual files

make modules

b. Install the modules: This will copy all the modules to a new directory, "/lib/modules/<kernel version>"

make modules_install

10. Installing the kernel:

Now install linux-next kernel using below command.

make install

11. Grub Modification:

Update grub.conf based on grub version, make new kernel as default kernel

For grub V1 files, change default value to 0

default=0

For grub V2 files, run below commands

grub2-mkconfig -o /boot/grub2/grub.cfg

grub2-set-default 0

12. Ensure eth0 is up and running

Sometimes eth0 will not run after reboot, so we need to add below command to either rc.local or after.local based on distro

ifup eth0 > /dev/null

13. Reboot the VM

Reboot the machine, you will be in the new kernel. Check the kernel using "uname -r"

reboot [or] init 6

uname -r

Note: Before reboot check new kernel position in the grub.cfg [or] grub2.cfg with older one and make it as default.

Issues we faced while installing new kernel:

1. Facing errors in crypto/signature/ksign-publickey.c file: For this issue try below procedure.

Run "make menuconfig", Disable "Module signature verification (EXPERIMENTAL)" in "Enable loadable module support" and

Disable "In-kernel signature checker (EXPERIMENTAL)" in "Cryptographic API" save and exit

Now build your kernel with the modified .config file

2. Facing errors Like "lib/locking-selftest.c:1546: error: implicit declaration of function ‘raw_spin_lock_nest_lock’"

You need to replace the raw_spin_lock_nest_lock with spin_lock_nest_lock in ww_test_spin_nest_unlocked function of lib/locking-selftest.c file

3. Facing disk space issues:

For this we need to make sure at least 20GB is available on disk.

Linux - 升级+编译kernel的更多相关文章

  1. 【转载】Linux升级NTPD服务器-编译安装ntp-4.2.8p12与配置

    [转载]Linux升级NTPD服务器-编译安装ntp-4.2.8p12与配置 1. 系统与软件版本 1.1 系统版本 rhel6.4(Red Hat Enterprise Linux Server r ...

  2. Linux内核编译完整过程

    Linux内核编译完整过程 通过网上的资料我自己的实际内核编译,我把对Linux内核编译的过程写在这里,也许对其他的Linux爱好者的编译学习有些帮助,其中很大部分是网上的资料,另外就是我在实际编译过 ...

  3. linux下编译出现空间不足解决办法

    linux下编译出现空间不足解决办法 编译内核出现问题: AS      .tmp_kallsyms1.o .tmp_kallsyms1.S:2: fatal error: when writing ...

  4. 运行在TQ2440开发板上以及X86平台上的linux内核编译

    一.运行在TQ2440开发板上的linux内核编译 1.获取源码并解压 直接使用天嵌移植好的“linux-2.6.30.4_20100531.tar.bz2”源码包. 解压(天嵌默认解压到/opt/E ...

  5. linux下编译原理分析

    linux下编译hello.c 程序,使用gcc hello.c,然后./a.out就能够执行:在这个简单的命令后面隐藏了很多复杂的过程,这个过程包含了以下的步骤: ================= ...

  6. linux内核编译环境配置

    linux内核编译环境配置 如果不是编译内核,只需要安装与内核相匹配的kernel-devel开发包即可.即是/lib/modules/`uname -r`/build -> /usr/src/ ...

  7. linux下编译运行驱动

    linux下编译运行驱动 嵌入式linux下设备驱动的运行和linux x86 pc下运行设备驱动是类似的,由于手头没有嵌入式linux设备,先在vmware上的linux上学习驱动开发. 按照如下方 ...

  8. hi3531 SDK 编译 kernel, 修改 参数

    开发环境用户指南上这么写的 3.1 内核源代码 成功安装Hi3531 SDK后,内核源代码已存放于SDK目录下的osdrv/目录中,用户可 直接进入目录进行相关操作. 3.2 配置内核 如果对内核和H ...

  9. Linux内核编译与安装

    2013-04-16    Linux内核介绍  Linux内核是一个用C语言写成的,符合POSIX标准的类Unix操作系统.内核是操作系统中最基本的一部分,提供了众多应用程序访问计算机硬件的机制.L ...

随机推荐

  1. Differential Geometry之第一章欧式空间

    书籍:<微分几何>彭家贵 局部微分几何 第一章.欧式空间 1.1向量空间 (1)向量空间 a.向量空间是集合,集合中的元素需要定义加法和乘法运算.向量空间和n维数组空间R^n不是同一个概念 ...

  2. MVC3 Razor视图引擎的基础语法

    好久没有关注微软的开发了,今天看到了MVC3,顺便学习学习,我觉得Razor是个不错的做法,比使用<%%>简单多了,而且好看.首先“_”开头的cshtml文档将不能在服务器上访问,和asp ...

  3. $_SERVER 中重要的元素

      元素/代码 描述 $_SERVER['PHP_SELF'] 返回当前执行脚本的文件名. $_SERVER['GATEWAY_INTERFACE'] 返回服务器使用的 CGI 规范的版本. $_SE ...

  4. js 调用php代码

    <?php $test = "var a = ".$_GET['test'].";"; ?> <mce:script type="t ...

  5. ios开发:Core Data概述

    Core Data 概述 2005年的四月份,Apple 发布了 OS X 10.4,在这个版本中 Core Data 框架发布了.Core Data本身既不是数据库也不是数据库访问框架.相反,Cor ...

  6. 使用jQuery POST提交数据返回的JSON是字符串不能解析为JSON对象

    post请求原代码: $.post( "/User/Home/Code", { Phone: $( "#phone").val() }, function (d ...

  7. C#高效率导出Excel

    首先,需要引用excel的库: Microsoft.Office.Interop.Excel.Application excel = new Microsoft.Office.Interop.Exce ...

  8. 初识 Jenkins

    Jenkins: Jenkins 是一款获奖的跨平台持续集成和持续交付软件,可以大大提高生产力.Jenkins 用以构建和测试软件项目,帮助开发者更容易的实现项目变更的持续集成,帮助用户更容易的获取最 ...

  9. UI2_UITableViewDelete

    // AppDelegate.m // UI2_UITableViewDelete // // Created by zhangxueming on 15/7/14. // Copyright (c) ...

  10. jquery 和 js 对象转换

    核心提示:jquery选择器得到的jquery对象和标准的 javascript中的document.getElementById()取得的dom对象是两种不同的对象类型,一般情况下,如S(’#id’ ...