RHEL8配置软件仓库

RHEL8配置软件仓库（yum源）

1. 给虚拟机添加光盘文件

   

2. 挂载光盘文件到目录

   # 创建挂载点
   mkdir /media/cdrom
   
   # 挂载
   [root@localhost media]# vim /etc/fstab
   ## 在最后添加如下内容
   /dev/cdrom /media/cdrom iso9660 defaults 0 0
   [root@localhost media]# mount -a
   mount: /media/cdrom: WARNING: device write-protected, mounted read-only.
   
   

3. 配置yum仓库的文件

   # 进入目录
   [root@localhost media]# cd /etc/yum.repos.d/
   # yum配置文件的名称随意，结尾为repo即可
   [root@localhost media]# vim readhat.repo
   
   # 写入文件内容
   [BaseOS]
   name=BaseOS
   baseurl=file:///media/cdrom/BaseOS
   gpgheck=0
   enabled=1
   [AppStream]
   name=AppStream
   baseurl=file:///media/cdrom/AppStream
   gpgcheck=0
   enabled=1
   

4. 使用yum /dnf安装软件

   yum  install 软件包名称

tip:

如果出现以下错误：

[root@localhost media]# dnf install tmux
Updating Subscription Management repositories.
Unable to read consumer identity
This system is not registered to Red Hat Subscription Management. You can use subscription-manager to register.

You have enabled checking of packages via GPG keys. This is a good thing.
However, you do not have any GPG public keys installed. You need to download
the keys for packages you wish to install and install them.
You can do that by running the command:
 rpm --import public.gpg.key

可以使用rpm --import public.gpg.key解决

配置阿里云yum源的方式

wget -O /etc/yum.repos.d/CentOS-Base.repo http://mirrors.aliyun.com/repo/Centos-8.repo

当有多个yum源存在时，linux提供有配置优先级的插件（需要安装）