Centos下挂载光盘建立本地YNM仓库

root@centos8 ~]# ls /misc/       ls /misc 一次
[root@centos8 ~]# ls /misc/cd    ls /misc/cd  一次 ，光盘自动挂载到这个文件夹
AppStream  BaseOS  EFI  images  isolinux  media.repo  TRANS.TBL
[root@centos8 ~]# lsblk
NAME   MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda      8:0    0  200G  0 disk 
├─sda1   8:1    0    1G  0 part /boot
├─sda2   8:2    0  100G  0 part /
├─sda3   8:3    0    2G  0 part [SWAP]
├─sda4   8:4    0    1K  0 part 
└─sda5   8:5    0   50G  0 part /data
sr0     11:0    1  6.7G  0 rom  /misc/cd




[root@centos8 ~]# cd /etc/yum.repos.d   切换到yum仓库索引目录
[root@centos8 yum.repos.d]# ls
backup  base.repo.backup
[root@centos8 yum.repos.d]# vim cdrom.repo  写光盘配置文件
[Base]
name=cdrom Baseos
baseurl=file:///misc/cd/BaseOS/
gpgcheck=0



[AppStream]
name=cdrom AppStream
baseurl=file:///misc/cd/AppStream/
gpgcheck=o                                                           




[root@centos8 yum.repos.d]# dnf repolist    生效
cdrom AppStream                           98 MB/s | 5.2 MB     00:00    
cdrom Baseos                              87 MB/s | 2.2 MB     00:00    
Last metadata expiration check: 0:00:01 ago on Sun 29 Dec 2019 04:32:46 PM CST.
repo id                       repo name                            status
AppStream                     cdrom AppStream                      4,681
Base                          cdrom Baseos                         1,655
[root@centos8 yum.repos.d]#  

不用网络，可以用本地光盘安装服务了