centos更换yum源

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CentOS更改yum源与更新系统

[1] 首先备份/etc/yum.repos.d/CentOS-Base.repo

mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
[2] 进入yum源配置文件所在文件夹

[root@localhost yum.repos.d]# cd /etc/yum.repos.d/
[3] 下载163的yum源配置文件，放入/etc/yum.repos.d/(操作前请做好相应备份)

[root@localhost yum.repos.d]# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
[4] 运行yum makecache生成缓存

[root@localhost yum.repos.d]# yum makecache
[5] 更新系统

[root@localhost yum.repos.d]# yum -y update
[6] 安装vim编辑器

[root@localhost ~]# yum -y install vim*