How to Configure Local YUM repository on CentOS 7 using ISO Image

YUM (YellowDog Updater Modified) is a package management tool for RPM based Linux system that helps to install, uninstall, and update packages local and other client machines over the network. YUM resolve all dependency and install the package with all dependencies.

 

This article describes How to Configure Local YUM repository on CentOS 7 using ISO Image.

 

Step 1. Mount ISO and Copy ISO Contents to Local Directory: Run the following commands to mount and copy ISO content into local directory to access the RPM packages by YUM:

 

[root@linuxcnf ~]# mount -t iso9660 /dev/sr0 /mnt mount: /dev/sr0 is write-protected, mounting read-only [root@linuxcnf ~]# [root@linuxcnf ~]# mkdir /opt/localrepo [root@linuxcnf ~]#

 

Now run the following command to copy the ISO contents into /opt/localrepo directory:

 

[root@linuxcnf ~]# cp -rv /mnt/* /opt/localrepo/ ‘/mnt/CentOS_BuildTag’ -> ‘/opt/localrepo/CentOS_BuildTag’ ‘/mnt/EFI’ -> ‘/opt/localrepo/EFI’ ‘/mnt/EFI/BOOT’ -> ‘/opt/localrepo/EFI/BOOT’ …………………….. ‘/mnt/RPM-GPG-KEY-CentOS-Testing-7’ -> ‘/opt/localrepo/RPM-GPG-KEY-CentOS-Testing-7’ ‘/mnt/TRANS.TBL’ -> ‘/opt/localrepo/TRANS.TBL’ [root@linuxcnf ~]#

 

Step 2. Configure the Local Repository: Run the following commands to move the old repo configuration file to other location as a backup:

 

[root@linuxcnf ~]# cd /etc/yum.repos.d/ [root@linuxcnf yum.repos.d]# mv * /root/

 

Create a local.repo named file under /etc/yum.repos.d/ and put the below contents in the file:

 

[root@linuxcnf yum.repos.d]# vi local.repo [CentOS7-Local] name=Local YUM Repository baseurl=file:///opt/localrepo/ enabled=1 gpgcheck=0

 

Step 3. Update Repository: Run the following commands to update local repository and create meta data:

 

[root@linuxcnf yum.repos.d]# createrepo /opt/localrepo/ Spawning worker 0 with 445 pkgs Workers Finished Saving Primary metadata Saving file lists metadata Saving other metadata Generating sqlite DBs Sqlite DBs complete [root@linuxcnf yum.repos.d]#

 

Step 4. Validate the Repository: Run the following command to clean up and validate the repository:

 

[root@linuxcnf ~]# yum clean all Loaded plugins: fastestmirror Cleaning repos: CentOS7-Local Cleaning up list of fastest mirrors Other repos take up 120 M of disk space (use --verbose for details) [root@linuxcnf ~]#

 

[root@linuxcnf ~]# yum repolist Loaded plugins: fastestmirror Determining fastest mirrors CentOS7-Local                                            | 2.9 kB     00:00 CentOS7-Local/primary_db                                   | 797 kB   00:00 repo id                          repo name                                status CentOS7-Local                    Local YUM Repository                     445 repolist: 445 [root@linuxcnf ~]#

 

Done!!! Local yum Repositories is configured on CentOS 7.