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CentOS yum下载时遇到问题？这些步骤你试过了吗？

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CentOS Yum下载指南

CentOS yum下载时遇到问题？这些步骤你试过了吗？

什么是Yum？

Yum（Yellowdog Updater, Modified）是一个基于RPM包管理器的软件包管理器，主要用于Linux系统，特别是Red Hat Enterprise Linux（RHEL）及其衍生版本，如CentOS，Yum通过自动解决依赖关系，简化了软件包的安装、更新和卸载过程。

CentOS Yum下载步骤

确定CentOS版本

在开始下载之前，首先需要确定你的CentOS版本，CentOS有多种版本，包括CentOS 5、CentOS 6、CentOS 7和CentOS 8等,不同版本的Yum下载地址可能会有所不同。

选择合适的Yum仓库

CentOS yum下载时遇到问题？这些步骤你试过了吗？

Yum仓库是存储软件包的地方，选择一个合适的Yum仓库可以让你更方便地下载所需的软件包,以下是一些常用的Yum仓库：

  • CentOS官方仓库：https://mirrors.aliyun.com/centos/
  • 网易开源镜像：http://mirrors.163.com/centos/
  • 清华大学开源软件镜像：https://mirrors.tuna.tsinghua.edu.cn/centos/

配置Yum仓库

在配置Yum仓库之前，需要先安装Yum，以下是在CentOS 7和CentOS 8中安装Yum的命令：

# CentOS 7
sudo yum install yum
# CentOS 8
sudo dnf install yum

安装完成后,可以使用以下命令配置Yum仓库：

sudo vi /etc/yum.repos.d/centos.repo

在打开的文件中,根据你的需求修改以下内容：

[baseos]
name=CentOS baseos $basearch - CentOS官方仓库
baseurl=https://mirrors.aliyun.com/centos/$releasever/BaseOS/$basearch/os/
enabled=1
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-CentOS-7
[epel]
name=Extra Packages for Enterprise Linux $releasever - CentOS官方仓库
baseurl=https://mirrors.aliyun.com/centos/$releasever/Extras/$basearch/os/
enabled=1
gpgcheck=1
gpgkey=https://mirrors.aliyun.com/centos/RPM-GPG-KEY-EPEL-7

下载软件包

CentOS yum下载时遇到问题？这些步骤你试过了吗？

在配置好Yum仓库后,可以使用以下命令下载所需的软件包：

sudo yum install 包名

下载Apache服务器：

sudo yum install httpd

安装软件包

下载完成后，Yum会自动解决依赖关系并安装软件包,以下是在安装Apache服务器后的输出信息：

Loaded plugins: fastestmirror
Resolving Dependencies
--> Running transaction check
---> Package httpd.x86_64 2.4.6-90.el7 will be installed
--> Processing Dependency: httpd-tools(x86_64) = 2.4.6-90.el7 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: apr-util-xml(x86_64) >= 1.2.12 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: apr-util-uuid(x86_64) >= 1.2.12 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: apr-util(x86_64) >= 1.2.12 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: apr(x86_64) >= 1.3.12 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: httpd-devel(x86_64) >= 2.4.6-90.el7 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: pcre(x86_64) >= 8.31 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: libxml2(x86_64) >= 2.9.1 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: openssl(x86_64) >= 1.0.1e for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: zlib(x86_64) >= 1.2.3.4 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: libssh2(x86_64) >= 1.4.2 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: expat(x86_64) >= 2.1.0 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nss(x86_64) >= 3.12.3 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nss-tools(x86_64) >= 3.12.3 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nss-softokn-freebl(x86_64) >= 3.12.3 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nss-softokn(x86_64) >= 3.12.3 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nss-util(x86_64) >= 3.12.3 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nss-tools(x86_64) >= 3.12.3 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-tools(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-devel(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-libs(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-plugins(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el7.x86_64
--> Processing Dependency: nspr-vendor(x86_64) >= 4.10.6 for package: httpd-2.4.6-90.el

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