CentOS8-stream 本地源配置
一、配置软件仓库（软件仓库位置：/media/CentOS）
1、建立目录 “CentOS” 。(mkdir -p /media/CentOS)
2、挂载光盘“CentOS-Stream-8-x86_64-20210506-dvd1.iso”。
3、将光盘文件夹“AppStream”、“BaseOS” 复制到 “/media/CentOS”目录。
（cp -r AppStream/ BaseOS/ /media/CentOS）
二、配置软件仓库文件（/etc/yum.repos.d/）
1、查看本地源配置文件：
[root@centos yum.repos.d]# cat CentOS-Stream-Media.repo
# CentOS-Stream-Media.repo
#
# You can use this repo to install items directly off the installation media.
# Verify your mount point matches one of the below file:// paths.
[media-baseos]
name=CentOS Stream $releasever - Media - BaseOS
baseurl=file:///media/CentOS/BaseOS
file:///media/cdrom/BaseOS
file:///media/cdrecorder/BaseOS
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[media-appstream]
name=CentOS Stream $releasever - Media - AppStream
baseurl=file:///media/CentOS/AppStream
file:///media/cdrom/AppStream
file:///media/cdrecorder/AppStream
gpgcheck=1
enabled=1
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-centosofficial
[root@centos yum.repos.d]#
2、开启仓库，将 “enabled=0”, 改为“enabled=1”。
三、测试本地源仓库：
[root@centos yum.repos.d]# dnf clean all
13 files removed
[root@centos yum.repos.d]# dnf makecache
CentOS Stream 8 - Media - BaseOS 68 MB/s | 2.5 MB 00:00
CentOS Stream 8 - Media - AppStream 72 MB/s | 7.1 MB 00:00
Last metadata expiration check: 0:00:01 ago on Sat 22 May 2021 03:31:48 PM CST.
dnf Metadata cache created.
[root@centos yum.repos.d]# dnf grouplist
Last metadata expiration check: 0:00:13 ago on Sat 22 May 2021 03:31:48 PM CST.
Available Environment Groups:
Server
Minimal Install
Workstation
Custom Operating System
Virtualization Host
Installed Environment Groups:
Server with GUI
Installed Groups:
Container Management
Headless Management
Available Groups:
Legacy UNIX Compatibility
Development Tools
.NET Core Development
Graphical Administration Tools
Network Servers
RPM Development Tools
Scientific Support
Security Tools
Smart Card Support
System Tools
[root@centos yum.repos.d]#