How the local image is used as a Yum source

The default yum is installed on the network, It is very painful to install the software through Yum without a network or poor speed. In fact, for Centosdvd , the software is sufficient to meet our needs, and The software version of the DVD is stable version, download speed is fast, for learning CentOS , the Centosdvd as the default yum source can greatly improve the learning efficiency.

1. Create a mount directory for the DVD

[[Email protected]~]# Mkdir/media/centos

2. Mount the Centosdvd under Linux ( virtual machine mount DVD not said, should be )

[Email protected]~]# mount-t Auto/dev/cdrom/media/centos

3, view the relevant configuration file, directory for

[Email protected]~]# ls-l/etc/yum.repos.d/

-rw-r--r--. 1 root root 1926 7 months 310:15 Centos-base.repo

-rw-r--r--. 1 root root 637 7 months 310:15 Centos-debuginfo.repo

-rw-r--r--. 1 root root 626 7 months 310:15 Centos-media.repo

4.Disable yum 's network update mode, simply rename the default preferred Centos-base.repo to Centos-base.repo.bak can

[[Email protected]]# mv Centos-base.repo Centos-base.repo.bak

5. Configure local yum source

[[Email protected]~]# Vim/etc/yum.repos.d/centos-media.repo

Will

[C6-media]

name=centos-$releasever-media

baseurl=file:///media/centos/

file:///media/cdrom/

file:///media/cdrecorder/

Gpgcheck=1

Enabled=0

Revision changed to

[C6-media]

name=centos-$releasever-media

baseurl=file:///media/centos/

Gpgcheck=1

Enabled=1

where baseurl changes to The Mount directory of the DVD,enabled=1 turn on local update mode

: Wq Save Exit

6. Clear the original yum information

[Email protected]~]# yum Clean all

Loadedplugins:fastestmirror

Cleaningup everything

7. Check the DVD software list

[Email protected]]# yum List

Loadedplugins:fastestmirror

Determiningfastest Mirrors

C6-media | 3.7 KB 00:00 ...

c6-media/primary_db | 3.3 MB 00:00 ...

This will be the default use of DVD installation software, if you want to restore the network installation mode, the centos-base.repo.bak renamed to restore.

PS. each time you restart the system, you need to mount the DVD manually to /media/centos/, and if you are bothered, you can automatically mount it by writing your own script.

How the local image is used as a Yum source