How to Create_a_Local_Yum_Repository

You can mount your CD DVD or ISO images to create YUM repository on RedHat/CentOS 5.x.


DVD Disk or DVD ISO image

• If you have DVD disk, please mount dvd-rom first, and then create yum repository
• # mkdir /mnt/dvd/
• # mount /dev/cdrom /mnt/dvd/
• If you use DVD iso, please copy it to the system, and then create yum repository
• # mkdir /mnt/dvd/ 
• # mount -o loop /root/rhel5.1-dvd.iso /mnt/dvd

CD images

• If you have multiple CD image files, You have to mount all those ISO images to create yum repository
• # mkdir -p /mnt/{1,2,3,4,5}
• # mount -o loop rhel5.1-disc1.iso /mnt/1
• # mount -o loop rhel5.1-disc2.iso /mnt/2
• # mount -o loop rhel5.1-disc3.iso /mnt/3
• # mount -o loop rhel5.1-disc4.iso /mnt/4
• # mount -o loop rhel5.1-disc5.iso /mnt/5

Install repository package

• Find and install 'createrepo' package in /mnt directory
•  # find /mnt -iname 'createrepo*' /mnt/dvd/Server/createrepo-0.4.11-3.el5.noarch.rpm
• # rpm -ivh /mnt/dvd/Server/createrepo-0.4.11-3.el5.noarch.rpm

Create metadata

• Create yum repository 
• # cd /mnt/
• # createrepo .

Define yum repository

• Create yum repository define file /etc/yum.repos.d/dvdiso.repo

[MailRepo] 
name=MailRepo
baseurl=file:///mnt/ 
enabled=1
gpgcheck=0

Test 

• Test it if its working fine. if its showing "yum list" it works
• # yum clean all
• # yum list

Good Luck :)