CentOS如果更改yum更新源详解

牛上树车上房 發表於 2023-10-7 00:00:00

<p>
<span><strong>前言</strong></span></p>
<p>
大家都知道Centos 有个很方便的软件安装工具 yum，但是默认安装完centos，系统里使用的是国外的centos更新源，这就造成了我们使用默认更新源安装或者更新软件时速度很慢的问题。</p>
<p>
为了使用yum工具能快速的安装更新软件，我们需要将默认的yum更新源配置为国内的更新源。yum更新源配置文件位于centos目录 /etc/yum.repos.d/ 下。</p>
<p>
<span><strong>首先提供几个国内快速的更新源：</strong></span></p>
<p>
<strong>教育网资源：</strong></p>
<p>
1 上海交大： http://ftp.sjtu.edu.cn/centos/</p>
<p>
服务器位于北京，中国教育网网络中心，下载速度高达十M。</p>
<p>
北方用户与教育网用户推荐，速度飞快。</p>
<p>
需要手动创建 CentOS-Base.repo文件。</p>
<p>
2 中国科技大学：http://centos.ustc.edu.cn</p>
<p>
服务器位于合肥。南方用户推荐。同样的，CenOS版本非常丰富，适合长期使用。</p>
<p>
<strong> 非教育网资源：</strong></p>
<p>
1 sohu的开源镜像服务器：http://mirrors.sohu.com/</p>
<p>
服务器位于山东省联通</p>
<p>
2 网易的开源服务器镜像： http://mirrors.163.com/centos</p>
<p>
速度也不错，全国用户推荐</p>
<p>
总之，大家在使用前可以 ping 一下一上更新源，看哪个快就用哪个。</p>
<p>
<span><strong>CentOS-Base.repo文件示例，这个文件在这个目录下 /etc/yum.repos.d/</strong></span></p>
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<code class="bash plain">name=CentOS-$releasever - Base</code>
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<code class="bash plain">baseurl=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/6</code><code class="bash plain">.4</code><code class="bash plain">/os/</code><code class="bash plain">$basearch/</code>
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<code class="bash plain">gpgcheck=1</code>
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<code class="bash plain">gpgkey=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/RPM-GPG-KEY-CentOS-6</code>
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<code class="bash plain">name=CentOS-$releasever - Updates</code>
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<code class="bash plain">baseurl=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/6</code><code class="bash plain">.4</code><code class="bash plain">/updates/</code><code class="bash plain">$basearch/</code>
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<code class="bash plain">gpgcheck=1</code>
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<code class="bash plain">gpgkey=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/RPM-GPG-KEY-CentOS-6</code>
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<code class="bash plain">name=CentOS-$releasever - Addons</code>
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<code class="bash plain">baseurl=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/</code><code class="bash plain">$releasever</code><code class="bash plain">/addons/</code><code class="bash plain">$basearch/</code>
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<code class="bash plain">gpgcheck=1</code>
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<code class="bash plain">gpgkey=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/RPM-GPG-KEY-CentOS-6</code>
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<code class="bash plain">name=CentOS-$releasever - Extras</code>
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<code class="bash plain">baseurl=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/6</code><code class="bash plain">.4</code><code class="bash plain">/extras/</code><code class="bash plain">$basearch/</code>
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<code class="bash plain">gpgkey=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/RPM-GPG-KEY-CentOS-6</code>
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<code class="bash plain">name=CentOS-$releasever - Plus</code>
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<code class="bash plain">baseurl=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/6</code><code class="bash plain">.4</code><code class="bash plain">/centosplus/</code><code class="bash plain">$basearch/</code>
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<code class="bash plain">gpgcheck=1</code>
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<code class="bash plain">enabled=0</code>
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<code class="bash plain">gpgkey=http:</code><code class="bash plain">//mirrors</code><code class="bash plain">.163.com</code><code class="bash plain">/centos/RPM-GPG-KEY-CentOS-6</code>
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<p>
从以上配置文件可以看出，需要根据各家源情况有选择的配置<strong> </strong> 这几项。</p>
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每一项只要修改<strong>baseurl </strong>和<strong>gpgkey </strong>为相应源地址即可。</p>
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<span><strong>以上配置结束之后，要清空yum 缓存，并重建yum缓存，执行以下命令：</strong></span></p>
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<code class="bash plain">yum clean all && yum clean metadata && yum clean dbcache && yum makecache && yum update</code>
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<span><strong>总结</strong></span></p>
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以上就是这篇文章的全部内容了，希望本文的内容对大家的学习或者工作能带来一定的帮助，如果有疑问大家可以留言交流。</p>

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CentOS如果更改yum更新源详解