0、请使用物理机安装，虚拟机没编译成功
1、先查看一下系统版本，需要是centos6，内核2.6
cat /etc/*release uname -r
[root@lvs-fullnat-one ~]# cat /etc/*release
CentOS release 6.5 (Final)
LSB_VERSION=base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
CentOS release 6.5 (Final)
CentOS release 6.5 (Final)
[root@lvs-fullnat-one ~]# uname -r
2.6.32-431.el6.x86_64
[root@lvs-fullnat-one ~]# 2、从Redhat网站下载kernel的rpm
wget ftp://ftp.redhat.com/pub/redhat/linux/enterprise/6Server/en/os/SRPMS/kernel-2.6.32-220.23.1.el6.src.rpm
如果无法现在，请从网盘下载。连接：
3、从rpm中获得kerel源码
vim ~/.rpmmacros;
add:
%_topdir /home/pukong/rpms
%_tmppath /home/pukong/rpms/tmp
%_sourcedir /home/pukong/rpms/SOURCES
%_specdir /home/pukong/rpms/SPECS
%_srcrpmdir /home/pukong/rpms/SRPMS
%_rpmdir /home/pukong/rpms/RPMS
%_builddir /home/pukong/rpms/BUILD
cd /home/pukong;
mkdir rpms;
mkdir rpms/tmp;
mkdir rpms/SOURCES;
mkdir rpms/SPECS;
mkdir rpms/SRPMS;
mkdir rpms/RPMS;
mkdir rpms/BUILD;
useradd mockbuild
rpm -ivh kernel-2.6.32-220.23.1.el6.src.rpm
cd /home/pukong/rpms/SPECS
yum -y install rpm-build
yum -y install gcc zlib-devel patchutils xmlto asciidoc elfutils-libelf-devel binutils-devel newt-devel python-devel hmaccalc
yum -y install rng-tools openssl-devel
rngd -r /dev/urandom ##rng-tools用于在执行rpmbuild -bb --target=`uname -m` kernel.spec的时候生成随机数，不然会卡在那里，但是根据卡的地方倒退回去会看到提示就执行rngd -r /dev/hwrandom，不行的话执行 rngd -r /dev/urandom，因此需要安装此工具
rpmbuild -bp kernel.spec;最后的rpmbuild是一个可能是一个十分漫长的操作,请不要关闭xshell。
这时候你就能在/home/pukong/rpms/BUILD找到内核源码
[root@lvs-fullnat-one SPECS]# cd /home/pukong/rpms/BUILD/;
[root@lvs-fullnat-one BUILD]# ls
kernel-2.6.32-220.23.1.el6
4、添加lvs patch
[Lvs-fullnat-synproxy.tar.gz]
https://pan.baidu.com/s/1sOnbGpnk7vZGoTxgEVDpAA
将文件放到服务器中
tar xvf Lvs-fullnat-synproxy.tar.gz
cd lvs-fullnat-synproxy/
cp lvs-2.6.32-220.23.1.el6.patch /home/pukong/rpms/BUILD/kernel-2.6.32-220.23.1.el6/linux-2.6.32-220.23.1.el6.x86_64/
cd /home/pukong/rpms/BUILD/;
cd kernel-2.6.32-220.23.1.el6/linux-2.6.32-220.23.1.el6.x86_64/;
patch -p1打完补丁，修改Makefile文件，给内核版本命名：
[root@lvs-fullnat-one linux-2.6.32-220.23.1.el6.x86_64]# uname -r
2.6.32-431.el6.x86_64
[root@lvs-fullnat-one linux-2.6.32-220.23.1.el6.x86_64]# vim Makefile
将Makefile中EXTRAVERSION 字段补上一个跟uname -r相似字段，如下图
VERSION = 2
PATCHLEVEL = 6
SUBLEVEL = 32
EXTRAVERSION = -431.toa.el6.x86_64
NAME = Man-Eating Seals of Antiquity
RHEL_MAJOR = 6
RHEL_MINOR = 2
RHEL_RELEASE = 219
注意修改.config文件中的参数,主要是为了扩大VS最大连接数，可以增大VS的吞吐量（并发连接量），如果值只是原本的4096可能会丢包
vim .config
CONFIG_IP_VS_TAB_BITS=22 5、编译内核
make -j16 ##j是指同时作业的数量，可以不用添加此参数
make modules_install;
make install;此时可能会报几个错
[root@lvs-fullnat-one linux-2.6.32-220.23.1.el6.x86_64]# make install;
sh /home/pukong/rpms/BUILD/kernel-2.6.32-220.23.1.el6/linux-2.6.32-220.23.1.el6.x86_64/arch/x86/boot/install.sh 2.6.322.6.32-431.el6.x86_64 arch/x86/boot/bzImage \
System.map "/boot"
ERROR: modinfo: could not find module lpc_ich
ERROR: modinfo: could not find module ptp
[root@lvs-fullnat-one linux-2.6.32-220.23.1.el6.x86_64]#
需要复制进来几个模块
cp /lib/modules/2.6.32-431.el6.x86_64/kernel/drivers/mfd/lpc_ich.ko /lib/modules/2.6.32-431.toa.el6.x86_64/kernel/drivers/mfd/
mkdir /lib/modules/2.6.32-431.toa.el6.x86_64/kernel/drivers/ptp
cp /lib/modules/2.6.32-431.el6.x86_64/kernel/drivers/ptp/ptp.ko /lib/modules/2.6.32-431.toa.el6.x86_64/kernel/drivers/ptp/
重新安装,会有几个警告，忽略即可
[root@lvs-fullnat-one linux-2.6.32-220.23.1.el6.x86_64]# make install;
sh /home/pukong/rpms/BUILD/kernel-2.6.32-220.23.1.el6/linux-2.6.32-220.23.1.el6.x86_64/arch/x86/boot/install.sh 2.6.32-431.toa.el6.x86_64 arch/x86/boot/bzImage \
System.map "/boot"
WARNING: /lib/modules/2.6.32-431.toa.el6.x86_64/kernel/drivers/ptp/ptp.ko needs unknown symbol kmem_cache_alloc_trace
WARNING: /lib/modules/2.6.32-431.toa.el6.x86_64/kernel/drivers/ptp/ptp.ko needs unknown symbol posix_clock_register
WARNING: /lib/modules/2.6.32-431.toa.el6.x86_64/kernel/drivers/ptp/ptp.ko needs unknown symbol posix_clock_unregister
[root@lvs-fullnat-one linux-2.6.32-220.23.1.el6.x86_64]# 6、修改内核文件
vim /boot/grub/grub.conf
修改default的值为0 表示先启动
引导文件中有两个引导启动段，一个是原本内核的linux，一个是新编译的内核，新编译的内核在上面，所以把default的值设为0，即表示使用新的内核引导系统了。
7、重启
reboot
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