CentOS下如何编译使用新内核

笔者尝试的方法有三种：

一、用阿里/淘宝内核，有详细的操作文档。

        附：kernel-2.6.32-279.9.1.tb1.el5.nosrc.rpm.zip

二、用Redhat/CentOS提供的内核源码包，进行定制、编译、安装。

        附：kernel-2.6.32-358.6.4.el6.nosrc.rpm.zip

三、用原生linux内核进行定制、编译、安装。

        附：kernel-ml-3.9.7-1.el6.nosrc.rpm.zip

 

千言万语，不如直接装上附的源码包看吧。以CentOS的源码包编译为例（nosrc.rpm需要自己去下载内核源码）：

# 安装编译所依赖的工具包 
yum -y install @development-tools fedora-packager kernel-devel rpm-build redhat-rpm-config asciidoc hmaccalc binutils-devel elfutils-libelf-devel newt-devel zlib-devel xmlto python-devel perl-ExtUtils-Embed 
# 生成目录：~/rpmbuild/{BUILD,BUILDROOT,RPMS,SOURCES,SPECS,SRPMS} 和文件 ~/.rpmmacros
rpmdev-setuptree
# CentOS 6 对应源码目录: http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/os/SRPMS 
cd ~/rpmbuild/SRPMS/ 
# CentOS 6 当下最新，以下以此为例 
wget http://ftp.redhat.com/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-279.19.1.el6.src.rpm 
# 安装内核源码包 
rpm -ivh ~/rpmbuild/SRPMS/kernel-2.6.32-279.19.1.el6.src.rpm 
# 使用rpmbuild就可以一键编出你的内核到 ~/rpmbuild/RPMS/ 目录中了 
rpmbuild -bb --with baseonly --with firmware --without debuginfo ~/rpmbuild/SPECS/kernel.spec
 #编译过程会用到大量随机种子，遇到 waiting for lock on `./random_seed'... 提示时请执行
rngd -r /dev/urandom
#编译完成会有如下提示：
# Wrote: ~/rpmbuild/RPMS/x86_64/kernel-2.6.32-279.19.2.el6.x86_64.rpm
# Wrote: ~/rpmbuild/RPMS/x86_64/kernel-headers-2.6.32-279.19.2.el6.x86_64.rpm
# Wrote: ~/rpmbuild/RPMS/x86_64/kernel-firmware-2.6.32-279.19.2.el6.x86_64.rpm
# Wrote: ~/rpmbuild/RPMS/x86_64/perf-2.6.32-279.19.2.el6.x86_64.rpm
# Wrote: ~/rpmbuild/RPMS/x86_64/python-perf-2.6.32-279.19.2.el6.x86_64.rpm
# Wrote: ~/rpmbuild/RPMS/x86_64/kernel-devel-2.6.32-279.19.2.el6.x86_64.rpm
#保守起键，先安装kernel-firmware再更新内核：
rpm -ivh ~/rpmbuild/RPMS/x86_64/kernel-firmware-2.6.32-279.19.2.el6.x86_64.rpm
rpm -ivh ~/rpmbuild/RPMS/x86_64/kernel-2.6.32-279.19.2.el6.x86_64.rpm
#验证安装正确性，检查/etc/grub.conf文件，默认启动的应该是我们新编的内核版本号
title CentOS (2.6.32-279.19.2.el6.x86_64)
#好吧，检查一下grub的启动顺利，一切正常就重启吧。
reboot
# 重启完成后检查一下最新内核是否生效
uname -a