How to Create Yum Repo

1.First unmount the disk

#df -h
#umount /media/RHEL... (whatever link it shows after df command>media section)
#mount /dev/cdrom /mnt

2.reate a folder named pkg(it could be anything) under root

#mkdir /pkg

3.Copy all files from iso to pkg folder

#cp -R /mnt/* /pkg

4.Check & install  the following packages
#cd /pkg/Package/
#rpm -ivh createrepo
#rpm -ivh python-delta
#rpm -ivh deltaRpm

5.Create repository
#createrepo -v /pkg

6.goto following folder
#cd /etc/yum.repos.d/

7.Create a file name "server.repo" for repository

#vi server.repo

[server]
name=server pkg
baseurl=file:///pkg
enabled=1
gpgcheck=0

:x

# yum update
#yum repolist

.....DONE......