修改CentOS默認yum源為國內yum鏡像源
1、首先備份系統自帶yum源配置文件/etc/yum.repos.d/CentOS-Base.repo
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[root@localhost ~]
# mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
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2、進入yum源配置文件所在的文件夾
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[root@localhost ~]
# cd /etc/yum.repos.d/
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3、下載163的yum源配置文件到上面那個文件夾內
CentOS7
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[root@localhost yum.repos.d]
# wget http://mirrors.163.com/.help/CentOS7-Base-163.repo
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CentOS6
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[root@localhost yum.repos.d]
# wget http://mirrors.163.com/.help/CentOS6-Base-163.repo
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CentOS5
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[root@localhost yum.repos.d]
# wget http://mirrors.163.com/.help/CentOS5-Base-163.repo
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4、運行yum makecache生成緩存
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[root@localhost yum.repos.d]
# yum makecache
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使用kill -9 進程ID殺掉線程。再運行一次yum makecache
5、這時候再更新系統就會看到以下mirrors.163.com信息
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[root@localhost yum.repos.d]
# yum -y update
已加載插件：fastestmirror, refresh-packagekit, security
設置更新進程Loading mirror speeds from cached hostfile
* base: mirrors.163.com
* extras: mirrors.163.com
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