使用ISO镜像配置本地yum源

1. 环境

环境&软件	版本	备注
VirtualBox	Virtual Box 7.0	虚拟机软件
CentOS7	CentOS-7-x86_64-Everything-2207-02.iso	大小大约10G

2. 挂载ISO镜像到文件系统

• 将iso镜像文件CentOS-7-x86_64-Everything-2207-02.iso上传到Linux系统/data/目录下；
• 创建/yum/local目录，将镜像挂载到该目录下；

mkdir -p /yum/local
cd /data
mount -o loop ./CentOS-7-x86_64-Everything-2207-02.iso /yum/local

• 检查挂载是否成功

[root@localhost data]# mount -o loop ./CentOS-7-x86_64-Everything-2207-02.iso /yum/local
mount: /dev/loop0 is write-protected, mounting read-only
[root@localhost data]# df -h
Filesystem               Size  Used Avail Use% Mounted on
......                   ...    ...   ...  ... ...
/dev/loop0               9.6G  9.6G     0 100% /yum/local
[root@localhost data]# ls /yum/local/
CentOS_BuildTag  GPL       LiveOS    RPM-GPG-KEY-CentOS-7
EFI              images    Packages  RPM-GPG-KEY-CentOS-Testing-7
EULA             isolinux  repodata  TRANS.TBL

3. 创建一个调用本地yum源的repo文件

[root@localhost data]# vim /etc/yum.repos.d/local.repo
[root@localhost data]# touch /etc/yum.repos.d/local.repo
[root@localhost data]# vim /etc/yum.repos.d/local.repo

[root@localhost data]# cat /etc/yum.repos.d/local.repo
[local]
name=local
baseurl=file:///yum/local
enable=1
gpgcheck=0
gpgkey=file:///yum/local/RPM-GPG-KEY-CentOS-7

4. 备份历史yum源

[root@localhost data]# mkdir -p /etc/yum.repos.d/history
[root@localhost data]# mv /etc/yum.repos.d/
CentOS-Base.repo           CentOS-Sources.repo
CentOS-CR.repo             CentOS-Vault.repo
CentOS-Debuginfo.repo      CentOS-x86_64-kernel.repo
CentOS-fasttrack.repo      history/
CentOS-Media.repo          local.repo
[root@localhost data]# mv /etc/yum.repos.d/history/local.repo /etc/yum.repos.d/
[root@localhost data]# ls /etc/yum.repos.d/
history  local.repo

5. 更新yum源

[root@localhost data]# yum update
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
local                                                | 3.6 kB     00:00
(1/2): local/group_gz                                  | 153 kB   00:00
(2/2): local/primary_db                                | 6.1 MB   00:00

6. 安装ntp测试本地源

在这里插入代码片[root@localhost data]# yum install -y ntp
Loaded plugins: fastestmirror, langpacks
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package ntp.x86_64 0:4.2.6p5-29.el7.centos.2 will be installed
--> Processing Dependency: libopts.so.25()(64bit) for package: ntp-4.2.6p5-29.el7.centos.2.x86_64
--> Running transaction check
---> Package autogen-libopts.x86_64 0:5.18-5.el7 will be installed
--> Finished Dependency Resolution

Dependencies Resolved

============================================================================ Package             Arch       Version                     Repository
                                                                       Size
============================================================================Installing:
 ntp                 x86_64     4.2.6p5-29.el7.centos.2     local     549 k
Installing for dependencies:
 autogen-libopts     x86_64     5.18-5.el7                  local      66 k

Transaction Summary
============================================================================Install  1 Package (+1 Dependent package)

Total download size: 615 k
Installed size: 1.5 M
Downloading packages:
----------------------------------------------------------------------------Total                                           31 MB/s | 615 kB  00:00
Running transaction check
Running transaction test
Transaction test succeeded
Running transaction
  Installing : autogen-libopts-5.18-5.el7.x86_64                        1/2
  Installing : ntp-4.2.6p5-29.el7.centos.2.x86_64                       2/2
  Verifying  : autogen-libopts-5.18-5.el7.x86_64                        1/2
  Verifying  : ntp-4.2.6p5-29.el7.centos.2.x86_64                       2/2
 
Installed:
  ntp.x86_64 0:4.2.6p5-29.el7.centos.2

Dependency Installed:
  autogen-libopts.x86_64 0:5.18-5.el7

Complete!