使用yum快速升級CentOS 6.5內核到 3.10.28vim
在yum的ELRepo源中,有mainline(3.13.1)、long-term(3.10.28)這2個內核版本,考慮到long-term更穩定,會長期更新,因此選擇這個版本。ide
一、導入public keyui
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.orgthis
二、安裝ELRepo到CentOS-6.5中spa
rpm -ivh http://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpmorm
三、安裝kernel-lt(lt=long-term)it
yum --enablerepo=elrepo-kernel install kernel-lt -yio
或者安裝kernel-ml(ml=mainline)class
yum --enablerepo=elrepo-kernel install kernel-ml -yimport
四、編輯grub.conf文件,修改Grub引導順序
vim /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 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
splashp_w_picpath=(hd0,0)/boot/grub/splash.xpm.gz
hiddenmenu
title CentOS (3.10.28-1.el6.elrepo.x86_64)
root (hd0,0)
kernel /boot/vmlinuz-3.10.28-1.el6.elrepo.x86_64 ro root=UUID=0a05411f-16f2-4d69-beb0-2db4cefd3613 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=en_US.UTF-8
rd_NO_LVM rd_NO_DM rhgb quiet
initrd /boot/initramfs-3.10.28-1.el6.elrepo.x86_64.img
title CentOS (2.6.32-431.3.1.el6.x86_64)
root (hd0,0)
kernel /boot/vmlinuz-2.6.32-431.3.1.el6.x86_64 ro root=UUID=0a05411f-16f2-4d69-beb0-2db4cefd3613 rd_NO_LUKS KEYBOARDTYPE=pc KEYTABLE=us rd_NO_MD crashkernel=auto LANG=en_US.UTF-8 r
d_NO_LVM rd_NO_DM rhgb quiet
initrd /boot/initramfs-2.6.32-431.3.1.el6.x86_64.img
title CentOS (2.6.32-431.el6.x86_64)
root (hd0,0)
kernel /boot/vmlinuz-2.6.32-431.el6.x86_64 ro root=UUID=0a05411f-16f2-4d69-beb0-2db4cefd3613 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-2.6.32-431.el6.x86_64.img
確認剛安裝好的內核在哪一個位置,而後設置default值(從0開始),通常新安裝的內核在第一個位置,因此設置default=0。
五、重啓,查看CentOS 6.5 內核版本號
[root@dev ~]# uname -r
3.10.28-1.el6.elrepo.x86_64