TranslateProject/published/201911/20191013 How to Enable EPEL Repository on CentOS 8 and RHEL 8 Server.md
2019-11-30 22:45:21 +08:00

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[#]: collector: (lujun9972)
[#]: translator: (geekpi)
[#]: reviewer: (wxy)
[#]: publisher: (wxy)
[#]: url: (https://linux.cn/article-11535-1.html)
[#]: subject: (How to Enable EPEL Repository on CentOS 8 and RHEL 8 Server)
[#]: via: (https://www.linuxtechi.com/enable-epel-repo-centos8-rhel8-server/)
[#]: author: (Pradeep Kumar https://www.linuxtechi.com/author/pradeep/)
如何在 CentOS 8 和 RHEL 8 服务器上启用 EPEL 仓库
======
EPEL 代表 “Extra Packages for Enterprise Linux”它是一个自由开源的附加软件包仓库可用于 CentOS 和 RHEL 服务器。顾名思义EPEL 仓库提供了额外的软件包,这些软件在 [CentOS 8][1] 和 [RHEL 8][2] 的默认软件包仓库中不可用。
在本文中,我们将演示如何在 CentOS 8 和 RHEL 8 服务器上启用和使用 EPEL 存储库。
![](https://img.linux.net.cn/data/attachment/album/201911/04/113307wz4y3lnczzlxzn2j.jpg)
### EPEL 仓库的先决条件
* 最小化安装的 CentOS 8 和 RHEL 8 服务器
* root 或 sudo 管理员权限
* 网络连接
### 在 RHEL 8.x 服务器上安装并启用 EPEL 仓库
登录或 SSH 到你的 RHEL 8.x 服务器,并执行以下 `dnf` 命令来安装 EPEL rpm 包,
```
[root@linuxtechi ~]# dnf install https://dl.fedoraproject.org/pub/epel/epel-release-latest-8.noarch.rpm -y
```
上面命令的输出将如下所示,
![dnf-install-epel-repo-rehl8][5]
EPEL rpm 包成功安装后,它将自动启用并配置其 yum/dnf 仓库。运行以下 `dnf``yum` 命令,以验证是否启用了 EPEL 仓库,
```
[root@linuxtechi ~]# dnf repolist epel
或者
[root@linuxtechi ~]# dnf repolist epel -v
```
![epel-repolist-rhel8][6]
### 在 CentOS 8.x 服务器上安装并启用 EPEL 仓库
登录或 SSH 到你的 CentOS 8 服务器,并执行以下 `dnf``yum` 命令来安装 `epel-release` rpm 软件包。在 CentOS 8 服务器中EPEL rpm 在其默认软件包仓库中。
```
[root@linuxtechi ~]# dnf install epel-release -y
或者
[root@linuxtechi ~]# yum install epel-release -y
```
执行以下命令来验证 CentOS 8 服务器上 EPEL 仓库的状态,
```
[root@linuxtechi ~]# dnf repolist epel
Last metadata expiration check: 0:00:03 ago on Sun 13 Oct 2019 04:18:05 AM BST.
repo id repo name status
*epel Extra Packages for Enterprise Linux 8 - x86_64 1,977
[root@linuxtechi ~]#
[root@linuxtechi ~]# dnf repolist epel -v
……………………
Repo-id : epel
Repo-name : Extra Packages for Enterprise Linux 8 - x86_64
Repo-status : enabled
Repo-revision: 1570844166
Repo-updated : Sat 12 Oct 2019 02:36:32 AM BST
Repo-pkgs : 1,977
Repo-size : 2.1 G
Repo-metalink: https://mirrors.fedoraproject.org/metalink?repo=epel-8&arch=x86_64&infra=stock&content=centos
Updated : Sun 13 Oct 2019 04:28:24 AM BST
Repo-baseurl : rsync://repos.del.extreme-ix.org/epel/8/Everything/x86_64/ (34 more)
Repo-expire : 172,800 second(s) (last: Sun 13 Oct 2019 04:28:24 AM BST)
Repo-filename: /etc/yum.repos.d/epel.repo
Total packages: 1,977
[root@linuxtechi ~]#
```
以上命令的输出说明我们已经成功启用了 EPEL 仓库。让我们在 EPEL 仓库上执行一些基本操作。
### 列出 EPEL 仓库种所有可用包
如果要列出 EPEL 仓库中的所有的软件包,请运行以下 `dnf` 命令,
```
[root@linuxtechi ~]# dnf repository-packages epel list
……………
Last metadata expiration check: 0:38:18 ago on Sun 13 Oct 2019 04:28:24 AM BST.
Installed Packages
epel-release.noarch 8-6.el8 @epel
Available Packages
BackupPC.x86_64 4.3.1-2.el8 epel
BackupPC-XS.x86_64 0.59-3.el8 epel
CGSI-gSOAP.x86_64 1.3.11-7.el8 epel
CGSI-gSOAP-devel.x86_64 1.3.11-7.el8 epel
Field3D.x86_64 1.7.2-16.el8 epel
Field3D-devel.x86_64 1.7.2-16.el8 epel
GraphicsMagick.x86_64 1.3.33-1.el8 epel
GraphicsMagick-c++.x86_64 1.3.33-1.el8 epel
…………………………
zabbix40-web-mysql.noarch 4.0.12-1.el8 epel
zabbix40-web-pgsql.noarch 4.0.12-1.el8 epel
zerofree.x86_64 1.1.1-3.el8 epel
zimg.x86_64 2.8-4.el8 epel
zimg-devel.x86_64 2.8-4.el8 epel
zstd.x86_64 1.4.2-1.el8 epel
zvbi.x86_64 0.2.35-9.el8 epel
zvbi-devel.x86_64 0.2.35-9.el8 epel
zvbi-fonts.noarch 0.2.35-9.el8 epel
[root@linuxtechi ~]#
```
### 从 EPEL 仓库中搜索软件包
假设我们要搜索 EPEL 仓库中的 Zabbix 包,请执行以下 `dnf` 命令,
```
[root@linuxtechi ~]# dnf repository-packages epel list | grep -i zabbix
```
上面命令的输出类似下面这样,
![epel-repo-search-package-centos8][7]
### 从 EPEL 仓库安装软件包
假设我们要从 EPEL 仓库安装 htop 包,运行以下 `dnf` 命令,
语法:
```
# dnf enablerepo=”epel” install <包名>
```
```
[root@linuxtechi ~]# dnf --enablerepo="epel" install htop -y
```
注意:如果我们在上面的命令中未指定 `enablerepo=epel`,那么它将在所有可用的软件包仓库中查找 htop 包。
本文就是这些内容了,我希望上面的步骤能帮助你在 CentOS 8 和 RHEL 8 服务器上启用并配置 EPEL 仓库,请在下面的评论栏分享你的评论和反馈。
--------------------------------------------------------------------------------
via: https://www.linuxtechi.com/enable-epel-repo-centos8-rhel8-server/
作者:[Pradeep Kumar][a]
选题:[lujun9972][b]
译者:[geekpi](https://github.com/geekpi)
校对:[wxy](https://github.com/wxy)
本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译,[Linux中国](https://linux.cn/) 荣誉推出
[a]: https://www.linuxtechi.com/author/pradeep/
[b]: https://github.com/lujun9972
[1]: https://www.linuxtechi.com/centos-8-installation-guide-screenshots/
[2]: https://www.linuxtechi.com/install-configure-kvm-on-rhel-8/
[3]: data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7
[4]: https://www.linuxtechi.com/wp-content/uploads/2019/10/EPEL-Repo-CentOS8-RHEL8.jpg
[5]: https://www.linuxtechi.com/wp-content/uploads/2019/10/dnf-install-epel-repo-rehl8.jpg
[6]: https://www.linuxtechi.com/wp-content/uploads/2019/10/epel-repolist-rhel8.jpg
[7]: https://www.linuxtechi.com/wp-content/uploads/2019/10/epel-repo-search-package-centos8.jpg