使用yum快速升级CentOS 6.5内核到 3.10.28
在yum的ELRepo源中,有 m ain l ine(3.13.1)、 l ong- t erm(3.10.28)这2个内核版本,考虑到long-term更稳定,会长期更新,所以选择这个版本。
1、导入public key
rpm --import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
2、安装ELRepo到CentOS-6.5中
rpm -ivh http://www.elrepo.org/elrepo-release-6-5.el6.elrepo.noarch.rpm
3、安装 kernel-lt(lt=long-term)
yum --enablerepo=elrepo-kernel install kernel-lt -y
或者安装kernel-ml(ml=mainline)
yum --enablerepo=elrepo-kernel install kernel-ml -y
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
splashimage=(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
确认刚安装好的内核在哪个位置,然后设置default值(从0开始),一般新安装的内核在第一个位置,所以设置default=0。
5、重启,查看内核版本号
[root@dev ~]# uname -r
3.10.28-1.el6.elrepo.x86_64
第一步:
rpm �import https://www.elrepo.org/RPM-GPG-KEY-elrepo.org
To install ELRepo for RHEL-7,SL-7 or CentOS-7:
rpm -Uvh http://www.elrepo.org/elrepo-release-7.0-2.el7.elrepo.noarch.rpm
6的命令如下:
rpm -Uvh http://www.elrepo.org/elrepo-release-6-6.el6.elrepo.noarch.rpm
6的命令如下:
rpm -Uvh http://www.elrepo.org/elrepo-release-5-5.el5.elrepo.noarch.rpm
第二步:
在yum的ELRepo源中,有mainline(3.16.1)、long-term(3.10.28)这2个内核版本
安装kernel-lt(lt=long-term)
yum �enablerepo=elrepo-kernel install kernel-lt -y
或者安装kernel-ml(ml=mainline)
yum �enablerepo=elrepo-kernel install kernel-ml -y
由于需要最新内核版本的支持,所以选择mainline
第三步:
centos:
sudo grub2-mkconfig -o /boot/grub2/grub.cfg //生成grub2的配置文件
如果没有grub2-mkconfig命令时,先安装grub2-tools
sudo yum install grub2-tools.x86_64 //
Debian or Ubuntu:
$ sudo update-grub //生成grub的配置文件
$ sudo apt-get install grub2-common //没有 update-grub命令时,先运行这个安装命令
原文链接:https://www.f2er.com/centos/381616.html