CentOS 6.X 內核升級 3.10

yum 源能夠配到國內的鏡像來加速 阿里雲，網易，搜狐均可以

這裏給個阿里雲的說明 http://mirrors.aliyun.com/hel...

先升級 CentOS 到 6.8 Final

yum update

配置 elrepo（官網） 提供的內核源來升級內核

先導入公鑰

rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org

導入源

rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm

而後能夠選擇安裝最新版內核，或者穩定版內核

最新版

yum –enablerepo=elrepo-kernel install -y kernel-ml

穩定版

yum --enablerepo=elrepo-kernel install kernel-lt -y

最後編輯 /etc/grub.conf 啓動文件

# grub.conf generated by anaconda
#
# Note that you do not have to rerun grub after making changes to this file
# NOTICE:  You do not have a /boot partition.  This means that
#          all kernel and initrd paths are relative to /, eg.
#          root (hd0,0)
#          kernel /boot/vmlinuz-version ro root=/dev/sda1
#          initrd /boot/initrd-[generic-]version.img
#boot=/dev/sda
default=0
timeout=5
splashimage=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title CentOS (3.10.104-1.el6.elrepo.x86_64)
        root (hd0,0)
        kernel /boot/vmlinuz-3.10.104-1.el6.elrepo.x86_64 ro root=UUID=e70a0f35-5468-435d-b625-5924aee0a8ad 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 /boot/initramfs-3.10.104-1.el6.elrepo.x86_64.img
title CentOS (2.6.32-642.11.1.el6.x86_64)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.32-642.11.1.el6.x86_64 ro root=UUID=e70a0f35-5468-435d-b625-5924aee0a8ad 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 /boot/initramfs-2.6.32-642.11.1.el6.x86_64.img
title CentOS (2.6.32-358.el6.x86_64)
        root (hd0,0)
        kernel /boot/vmlinuz-2.6.32-358.el6.x86_64 ro root=UUID=e70a0f35-5468-435d-b625-5924aee0a8ad 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 /boot/initramfs-2.6.32-358.el6.x86_64.img

title順序從上往下 0，1，2
默認新裝的應該排在最上面
因此把default值改爲0

而後重啓
查看版本信息

#cat /etc/redhat-release
CentOS release 6.8 (Final)
# uname -r
3.10.104-1.el6.elrepo.x86_64

搞定