Creating a Local CentOS Repo

Setting Up the Repo Location

1. Make a directory in which you will store the RPMs from the CentOS disc

mkdir -p /rpm-packages

2. Copy the disk contents to that directory

rsync -avHx /rpm-packages-source /rpm-packages-destination

3. Ensure your destination directory is writable

chmod 666 /rpm-packages-destination

Configuring the CentOS Client

Creating the Repo Files

1. Install createrepo in order to create repo data

yum -y install createrepo

2. Mount the rpm packages from the CentOS disc so we can create some repo files

mount /rpm-packages /mnt/rpm-local-mount

3. Create the repo files using the installed createrepo command

createrepo -v /mnt/rpm-local-mount --outputdir /home/ 

4. Copy the repo data you created to the /repo-pacakages-destination

rsync -avHx /home/repodata root@repo-server:/rpm-packages-destination

Creating the repo file and verifying

1. Create the local repo file

vi /etc/yum.repos.d/local.repo
[centos-disc]
name=CentOS repository in Sandvine Waterloo LAB
baseurl=ftp://repo-server/rpm-packages-destination
enabled=1
protect=0
gpgcheck=0

2. Verify you can connect the repo

yum repolist

References:
http://linuxchallenges.blogspot.ca/2012/03/local-yum-repository-on-red-hat-6centos.html
http://www.bestdesigns.co.in/blog/create-yum-repository-local-machine
http://howtoinstallit.wordpress.com/2013/04/26/how-to-create-local-yum-repository-in-centos-6-4/
http://www.planet-heisel.de/joomla/index.php/software-tools/87-software/codeschnipsel/93-repo-centos63
http://boxgrinder.org/tutorials/how-to-use-local-repository/