centos7.9.2009换源：换阿里云镜像源

Dear 丶 2023-10-14 15:12 9阅读 0赞

### 1、安装wget ###

yum install -y wget

### 2、下载CentOS 7的repo文件 ###

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

或者

curl -o /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-7.repo

### 3、更新镜像源 ###

清除缓存：

yum clean all

生成缓存：

yum makecache

### 完整repo ###

# CentOS-Base.repo
    #
    # The mirror system uses the connecting IP address of the client and the
    # update status of each mirror to pick mirrors that are updated to and
    # geographically close to the client.  You should use this for CentOS updates
    # unless you are manually picking other mirrors.
    #
    # If the mirrorlist= does not work for you, as a fall back you can try the 
    # remarked out baseurl= line instead.
    #
    #
     
    [base]
    name=CentOS-$releasever - Base - mirrors.aliyun.com
    failovermethod=priority
    baseurl=http://mirrors.aliyun.com/centos/$releasever/os/$basearch/
            http://mirrors.aliyuncs.com/centos/$releasever/os/$basearch/
            http://mirrors.cloud.aliyuncs.com/centos/$releasever/os/$basearch/
    gpgcheck=1
    gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
     
    #released updates 
    [updates]
    name=CentOS-$releasever - Updates - mirrors.aliyun.com
    failovermethod=priority
    baseurl=http://mirrors.aliyun.com/centos/$releasever/updates/$basearch/
            http://mirrors.aliyuncs.com/centos/$releasever/updates/$basearch/
            http://mirrors.cloud.aliyuncs.com/centos/$releasever/updates/$basearch/
    gpgcheck=1
    gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
     
    #additional packages that may be useful
    [extras]
    name=CentOS-$releasever - Extras - mirrors.aliyun.com
    failovermethod=priority
    baseurl=http://mirrors.aliyun.com/centos/$releasever/extras/$basearch/
            http://mirrors.aliyuncs.com/centos/$releasever/extras/$basearch/
            http://mirrors.cloud.aliyuncs.com/centos/$releasever/extras/$basearch/
    gpgcheck=1
    gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
     
    #additional packages that extend functionality of existing packages
    [centosplus]
    name=CentOS-$releasever - Plus - mirrors.aliyun.com
    failovermethod=priority
    baseurl=http://mirrors.aliyun.com/centos/$releasever/centosplus/$basearch/
            http://mirrors.aliyuncs.com/centos/$releasever/centosplus/$basearch/
            http://mirrors.cloud.aliyuncs.com/centos/$releasever/centosplus/$basearch/
    gpgcheck=1
    enabled=0
    gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
     
    #contrib - packages by Centos Users
    [contrib]
    name=CentOS-$releasever - Contrib - mirrors.aliyun.com
    failovermethod=priority
    baseurl=http://mirrors.aliyun.com/centos/$releasever/contrib/$basearch/
            http://mirrors.aliyuncs.com/centos/$releasever/contrib/$basearch/
            http://mirrors.cloud.aliyuncs.com/centos/$releasever/contrib/$basearch/
    gpgcheck=1
    enabled=0
    gpgkey=http://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7