备份本地yum源
[root@localhost ~]# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
下载yum源
[root@localhost ~]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
yum更新
[root@localhost ~]# yum clean all # 清除系统所有的yum缓存 [root@localhost ~]# yum makecache # 生成yum缓存 [root@localhost ~]# yum update # 升级所有包,改变软件设置和系统设置,系统版本内核都升级。
查看yum源
[root@localhost ~]# yum repolist all # 查看所有的yum源 [root@localhost ~]# yum repolist enabled # 查看可用的yum源
常用yum源补充:
####阿里云###### # CentOS 5 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-5.repo # CentOS 6 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-6.repo # CentOS 7 wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo ####中科大###### wget http://centos.ustc.edu.cn/CentOS-Base.repo ####163####### wget http://mirrors.163.com/.help/CentOS6-Base-163.repo ####sohu###### wget http://mirrors.sohu.com/help/CentOS-Base-sohu.repo