Howto Setup yum repositories to update or install package from ISO CDROM Image

Step # 1: Mount an ISO file

Type the following command (replace iso file name with the actual iso file):

# yum install createrepo

# mkdir -p /mnt/iso/{1,2,3}

# mount -o loop /path/to/centos1.iso /mnt/iso/1

Step # 2: Create a repository

Use createrepo to generate the necessary XML metadata. Type the following commands:

# cd /mnt/iso

# createrepo .

Clean repo, enter:

# yum clean all

Step # 3: Create config file

You need to create a repo config file in /etc/yum.repos.d/ directory.

# vi /etc/yum.repos.d/iso.repo

Append following text:

[My ISO Repository]

baseurl=file:///mnt/iso

enabled=1

gpgcheck=1

gpgkey=file:///mnt/iso/1/RPM-GPG-KEY-redhat-releaseSave and close the changes.

Now use yum command to install packages from ISO images:

# yum install package-name