CentOS更改yum源与更新系统

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

<span style="color: #0000ff;">mv</span> /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup

1	<span style="color: #0000ff;">mv</span> /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/

1	[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]# <span style="color: #0000ff;">wget</span> http:<span style="color: #008000;">//</span><span style="color: #008000;">mirrors.163.com/.help/CentOS6-Base-163.repo</span>

1	[root@localhost yum.repos.d]# <span style="color: #0000ff;">wget</span> http:<span style="color: #008000;">//</span><span style="color: #008000;">mirrors.163.com/.help/CentOS6-Base-163.repo</span>

[4] 运行yum makecache生成缓存

[root@localhost yum.repos.d]# yum makecache

1	[root@localhost yum.repos.d]# yum makecache

[5] 更新系统

[root@localhost yum.repos.d]# yum -y update

1	[root@localhost yum.repos.d]# yum -y update

[6] 安装vim编辑器

[root@localhost ~]# yum -y <span style="color: #0000ff;">install</span> vim*

1	[root@localhost ~]# yum -y <span style="color: #0000ff;">install</span> vim*