AlmaLinux9配置本地镜像仓库

[1. 创建挂载目录](#1. 创建挂载目录)

[2. 挂载ISO镜像文件](#2. 挂载ISO镜像文件)

[3. 备份原有仓库配置](#3. 备份原有仓库配置)

[4. 创建本地仓库配置文件](#4. 创建本地仓库配置文件)

[5. 更新仓库缓存](#5. 更新仓库缓存)

[6. 测试安装功能](#6. 测试安装功能)

1. 创建挂载目录

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mkdir /media/cdrom

2. 挂载iso镜像文件

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mount /mnt/AlmaLinux-9.7-x86_64-dvd.iso /media/cdrom/

3. 备份原有仓库配置

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mkdir /etc/yum.repos.d/bak
mv /etc/yum.repos.d/* /etc/yum.repos.d/bak/

4. 创建本地仓库配置文件

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vim /etc/yum.repos.d/local.repo

配置文件内容：

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[local-repo]
name=Local AlmaLinux Repository
baseurl=file:///media/cdrom/AppStream
enabled=1
gpgcheck=0

5. 更新仓库缓存

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yum clean all
yum makecache

6. 测试安装功能

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yum -y install telnet

预期输出示例：

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Last metadata expiration check: 0:00:32 ago on Thu 04 Dec 2025 04:36:49 PM CST.
Dependencies resolved.
====================================================================================================================
 Package                 Architecture            Version                          Repository                   Size
====================================================================================================================
Installing:
 telnet                  x86_64                  1:0.17-85.el9                    local-repo                   63 k

Transaction Summary
====================================================================================================================
Install  1 Package

Total size: 63 k
Installed size: 121 k
Downloading Packages:
Running transaction check
Transaction check succeeded.
Running transaction test
Transaction test succeeded.
Running transaction
  Preparing        :                                                                                            1/1 
  Installing       : telnet-1:0.17-85.el9.x86_64                                                                1/1 
  Running scriptlet: telnet-1:0.17-85.el9.x86_64                                                                1/1 
  Verifying        : telnet-1:0.17-85.el9.x86_64                                                                1/1 

Installed:
  telnet-1:0.17-85.el9.x86_64

如出现以上类似输出，表示telnet已成功从本地仓库安装，证明本地镜像仓库配置正确。