linux源码升级内核

 当前环境：

[[email protected] ~]# uname -r
    2.6.18-348.el5

配置流程：

1、准备yum库安装g++ gcc

[[email protected] ~]# cat /etc/yum.repos.d/rh_5.9.repo
[rhel-server]
name=Red server
baseurl=file:///misc/cd/Server
enabled=1
gpgcheck=0
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
[[email protected] ~]# yum -y install gcc g++

2、解压安装xz-5.0.5.tar.gz

[[email protected] ~]# tar -zxf xz-5.0.5.tar.gz /usr/
[[email protected] ~]# cd /usr/
[[email protected] ~]# cd /usr/xz-5.0.5/
[[email protected] xz-5.0.5]# ./configure --prefix=/usr/local/
[[email protected] xz-5.0.5]# make
[[email protected] xz-5.0.5]# make install

2、验证安装xz-5.0.5.tar.gz是否成功

[[email protected] xz-5.0.5]# which xzcat
/usr/local/bin/xzcat

3、安装linux-2.6.32.61.tar.xz

[[email protected] usr]# cd /root/
[[email protected] ~]# unxz linux-2.6.32.61.tar.xz
[[email protected] ~]# tar -xf linux-2.6.32.61.tar -C /usr/
4、把/boot/config-2.6.18-348.el5 .config复制到刚才解压的位置命名
                                     为"config"加快速度，减少出错。

[[email protected] ~]# cd /usr/
[[email protected] usr]# cp  /boot/config-2.6.18-348.el5  .config

5、配置

[[email protected] usr]# cd linux-2.6.32.61/
[[email protected] linux-2.6.32.61]# make menuconfig
 *** Unable to find the ncurses libraries or the
 *** required header files.
 *** ‘make menuconfig‘ requires the ncurses libraries.
 ***
 *** Install ncurses (ncurses-devel) and try again.
 ***
make[1]: *** [scripts/kconfig/dochecklxdialog] 错误 1
make: *** [menuconfig] 错误 2
[[email protected] linux-2.6.32.61]# yum -y install ncurses-devel //出现如
                                               上错误，安装这个包即可
[[email protected] linux-2.6.32.61]# make menuconfig

展开File systems ---> DOS/FAT/NT Filesystems ---> NTFS file system support，设为[M]

展开Device Drivers ---> IEEE 1394 (FireWire) supports ---> FireWire driver stack，设为[ ]

(Exit 回车，重复多次，最后选择yes确认，保存到.config 配置文件)       //编辑模块，根据自我定义增加和删除

编辑“.config”在末行添加

CONFIG_DEBUG_SECTION_MISMATCH=y             //查看更详细输出
　　CONFIG_SYSFS_DEPRECATED_V2=y                //启用新版sysfs路径

下面编译内核时间较长大约40分钟，你可以去冲杯offce了

[[email protected] linux-2.6.32.61]# make                 //编译内核
[[email protected] linux-2.6.32.61]# make modules          //编译模块
[[email protected] linux-2.6.32.61]# make modules_install //安装内核
              不要把make modules_install写成make modules install
[[email protected] lmake install

16、启用新内核，修改默认引导项

[[email protected] lvim /etc/grub.conf

　调整配置文件中的default项，由1改为0，然后重启即可。

[[email protected] ~]# uname -r
2.6.32.61

注意：如果内核版本差太多，可能会失败。

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