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2019-08-10 此類文章網(wǎng)上很多，偷個(gè)懶，轉(zhuǎn)了一篇比較全的文章1、什么是yum倉庫? 我們通常使用 yum install 命令來在線安裝 linux系統(tǒng)的軟件， 這種方式可以自動(dòng)處理依賴性關(guān)系，并且一次安裝所有依賴的軟體包，但是經(jīng)常會(huì)遇到從國外鏡像下載速度慢，無法下載的情況。那么此時(shí)我們就需要把我們的yum 源改為國內(nèi)的鏡像。 yum的配置文件 2、yum倉庫配置 2.1、配置 阿里鏡像倉庫
找到centos，點(diǎn)擊右邊的 幫助 ，看到阿里鏡像倉庫給出的yum的配置說明。
（1）、備份，將 CentOS-Base.repo 為CentOS-Base.repo.backup mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.backup
（2）、下載新的 http://mirrors.aliyun.com/repo/Centos-7.repo,并命名為CentOS-Base.repo 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）、清除緩存 yum clean all # 清除系統(tǒng)所有的yum緩存
yum makecache # 生成yum緩存
yum update
2.1.2、epel源 安裝和配置 [java@localhost yum.repos.d]$ yum list | grep epel-release epel-release.noarch 7-11 extras [java@localhost yum.repos.d]$ （2）、安裝 epel [java@localhost yum.repos.d]$ yum install -y epel-release
......省略.....
（3）、配置阿里鏡像提供的epel源 wget -O /etc/yum.repos.d/epel-7.repo http://mirrors.aliyun.com/repo/epel-7.repo 4、清除緩存 yum clean all # 清除系統(tǒng)所有的yum緩存
yum makecache # 生成yum緩存
yum update
2.1.3、查看yum源 查看所有的yum源：
yum repolist all
查看可用的yum源：
yum repolist enabled
2.2、配置 清華大學(xué)鏡像倉庫
頁面提供了 CentOS5，CentOS6、CentOS7 的鏡像倉庫配置，下面列出的是CentOS7的配置。 （1）、首先備份 CentOS-Base.repo mv /etc/yum.repos.d/CentOS-Base.repo /etc/yum.repos.d/CentOS-Base.repo.bak
（2）、之后啟用 TUNA 軟件倉庫， 將清華大學(xué)鏡像倉庫信息寫入 /etc/yum.repos.d/CentOS-Base.repo  vim /etc/yum.repos.d/CentOS-Base.repo 將 CentOS-Base.repo 中的內(nèi)容 更新為 下面的內(nèi)容： # 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-$releasever - Base baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/os/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=os gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #released updates [updates] name=CentOS-$releasever - Updates baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/updates/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=updates gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #additional packages that may be useful [extras] name=CentOS-$releasever - Extras baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/extras/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=extras gpgcheck=1 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 #additional packages that extend functionality of existing packages [centosplus] name=CentOS-$releasever - Plus baseurl=https://mirrors.tuna.tsinghua.edu.cn/centos/$releasever/centosplus/$basearch/ #mirrorlist=http://mirrorlist.centos.org/?release=$releasever&arch=$basearch&repo=centosplus gpgcheck=1 enabled=0 gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-CentOS-7 （3）、清除緩存 yum clean all # 清除系統(tǒng)所有的yum緩存
yum makecache # 生成yum緩存
yum update
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