CentOS6.4 升级内核3.4.56步骤和方法

当前系统为CentOS Linux release 6.4 (Final)，内核版本为2.6.32-358.el6.i686.将内核升级至3.4.56最新版本。

1、查看当前系统内核

# uname -r2 2.6.32-358.el6.i686

2、下载linux-3.4.56内核包

# cd ~# wget -c https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.4.56.tar.xz# tar -Jxvf linux-3.4.56.tar.xz# mv linux-3.4.56 /usr/src/linux-3.4.56# cd linux-3.4.56

3、配置内核并安装

# make mrproper #清除环境变量，即清除配置文件# make menuconfig #在菜单模式下选择需要编译的内核模块

# make clean #确保所有东西均保持最新状态.# make bzImage #生成内核文件# make modules #编译模块# make modules_install #安装模块# make install #安装

4、编辑 /etc/grub.conf 文件，将 default=1 改为 default=0

# cat /etc/grub.conf# grub.conf generated by anaconda## Note that you do not have to rerun grub after making changes to this file# NOTICE: You have a /boot partition. This means that# all kernel and initrd paths are relative to /boot/, eg.# root (hd0,0)# kernel /vmlinuz-version ro root=/dev/mapper/VolGroup-lv_root# initrd /initrd-[generic-]version.img#boot=/dev/sdadefault=1timeout=3splashimage=(hd0,0)/grub/splash.xpm.gzhiddenmenutitle CentOS (3.4.56)        root (hd0,0)        kernel /vmlinuz-3.4.56 ro root=UUID=2c06f495-2f8c-4930-8968-9c612d32edc1 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet        initrd /initramfs-3.4.56.imgtitle CentOS (2.6.32-358.14.1.el6.i686)        root (hd0,0)        kernel /vmlinuz-2.6.32-358.14.1.el6.i686 ro root=UUID=2c06f495-2f8c-4930-8968-9c612d32edc1 rd_NO_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet        initrd /initramfs-2.6.32-358.14.1.el6.i686.imgtitle CentOS (2.6.32-358.el6.i686)        root (hd0,0)        kernel /vmlinuz-2.6.32-358.el6.i686 ro root=UUID=2c06f495-2f8c-4930-8968-9c612d32edc1 rd_NO_LUKS  KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=zh_CN.UTF-8 rd_NO_LVM rd_NO_DM rhgb quiet        initrd /initramfs-2.6.32-358.el6.i686.img

5、重启系统,并查看内核

# reboot# uname -r3.4.56

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