CentOS6.5 Kernel upgrade tutorial

1. download source package url: http://www.kernel.org on the home page can see stable, longterm and other versions, General choose to download longterm version, because this version provides long-term support for stable version, so I choose 3.12.16. [root @ CentOS-BinaryDev ~] # Wgethttps: // www. ke

1. download the source code package

URL:Http://www.kernel.org

On the homepage, you can see stable and longterm versions. Generally, you can download longterm versions. this version is a stable version that provides long-term support. Therefore, I chose 3.12.16.

[Root @ CentOS-BinaryDev ~] # Wget https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.12.16.tar.xz

2. decompress and enter the Directory

[Root @ CentOS-BinaryDev ~] # Tar-xf linux-3.12.16.tar.xz

[Root @ CentOS-BinaryDev ~] # Cd linux-3.12.16

3. update the current system

[Root @ CentOS-BinaryDev ~] # Yum update

[Root @ CentOS-BinaryDev ~] # Yum upgrade

4. install the software packages required to compile the kernel

[Root @ CentOS-BinaryDev ~] # Yum groupinstall "Development Tools"

[Root @ CentOS-BinaryDev ~] # Yum install ncurses-devel

[Root @ CentOS-BinaryDev ~] # Yum install qt-devel

[Root @ CentOS-BinaryDev ~] # Yum install hmaccalc zlib-devel binutils-devel elfutils-libelf-devel

5. view the current system kernel

[Root @ CentOS-BinaryDev ~] # Uname-r

2.6.32-358.11.1.el6.x86_64

6. copy the configuration file of the current system kernel to the current directory.

[Root @ CentOS-BinaryDev ~] # cp /boot/config-2.6.32-358.11.1.el6.x86_64 .config

7. use the current system kernel configuration and automatically accept the default settings for each new option

[Root @ CentOS-BinaryDev ~] # Sh-c 'Yes "" | make oldconfig'

8. Compile

[Root @ CentOS-BinaryDev ~] # Make bzImage

[Root @ CentOS-BinaryDev ~] # Make modules

[Root @ CentOS-BinaryDev ~] # Make modules_install

9. Installation

[Root @ CentOS-BinaryDev ~] # Make install

Ignore a small number of errors.

10. modify the Grub boot sequence

[Root @ CentOS-BinaryDev ~] # Vim/etc/grub. conf

Generally, the new kernel is located at the first one, so the default value is set to 0.

11. check the kernel version number after restart.

[Root @ CentOS-BinaryDev ~] # Uname-r

3.12.16

12. if the code fails, go to step 1 and clear the last compiled field before restarting.

[Root @ CentOS-BinaryDev ~] # Make mrproper