Fourth, CD YUM Source Construction

1, mount the optical drive

　　https:/ /www.cnblogs.com/healy/p/11428622.html

2 , Make network yum source files invalid

　　

3, enter the configuration file view

　　

4. Invalidate network yum source files

　　

5. Modify the CD-ROM yum source file

　　

6. View the yum local installation package

　　　#yum list