CentOS7.9搭建局域网yum源

一、搭建本地yum源 1、将系统镜像复制到空间较大的目录 [root@localhost ~]# mv CentOS-7.9-x86_64-DVD-2009.iso /home/ 2、创建挂载目录并挂载系统镜像 [root@localhost ~]# cd /home [root@localhost home]# mkdir /mnt/iso [root@localhost home]# mount -o loop CentOS-7.9-x86_64-DVD-2009.iso /mnt/iso mount: /dev/loop0 写保护，将以只读方式挂载 [root@localhost home]# ls /mnt/iso CentOS_BuildTag  EFI  EULA  GPL  images  isolinux  LiveOS  Packages  repodata  RPM-GPG-KEY-CentOS-7  RPM-GPG-KEY-CentOS-Testing-7  TRANS.TBL 3、备份原有的yum源信息并修改配置本地yum源信息 [root@localhost home]# cd /etc/yum.repos.d/ [root@localhost yum.repos.d]# mkdir ./bak [root@localhost yum.repos.d]# mv ./*.repo ./bak/ [root@localhost yum.repos.d]# cp ./bak/CentOS-Media.repo . [root@localhost yum.repos.d]# vi CentOS-Media.repo

# CentOS-Media.repo #  This repo can be used with mounted DVD media, verify the mount point for #  CentOS-7.  You can use this repo and yum to install items directly off the #  DVD ISO that we release. # To use this repo, put in your DVD and use it with the other repos too: #  yum --enablerepo=c7-media [command] # or for ONLY the media repo, do this: #  yum --disablerepo=\* --enablerepo=c7-media [command] [c7-media] name=CentOS-$releasever - Media baseurl=file:///media/CentOS/         file:///mnt/iso