CentOS / RHEL 6 : How to setup yum repository using locally mounted DVD

A yum repository (or “repo” for short) is a collection of RPMs in a single location, for example, on a web site or in a directory on a DVD. In RHEL 6.0 Snapshot 12 there are 5 repositories:
1. HighAvailability
2. LoadBalancer
3. ResilientStorage
4. ScalableFileSystem
5. Server

The Server repo is the main repo with the usual packages (httpd, glibc, bash, coreutils, etc). The other 4 are specialty add-on repos for packages; for example, to help with a Load Balancing web server.

There may be cases when you can not update the server using a satellite server or have a secure environment that will never be connected to the Internet but still needs to be updated. Well, there is a way out. You can locally mount the RHEL 6 DVD ISO and use it as your yum repository.

Configuring yum repository using locally mounted DVD

1. Mount the RHEL 6 installation ISO somewhere like /mnt, e.g.:

# mount -o loop rhel6.iso /mnt

Also read : Linux / UNIX : How to mount an iso file

2. Copy the media.repo file from the root of the mounted ISO to /etc/yum.repos.d/ and set the permissions. e.g.:

# cp /mnt/media.repo /etc/yum.repos.d/rhel6dvd.repo
# chmod 644 /etc/yum.repos.d/rhel6dvd.repo

3. Edit the new repo file, change the gpgcheck=0 setting to 1 and add the following 3 lines (make sure to replace "Server" with "Client" or "Workstation", depending on the type of RHEL DVD in use):

enabled=1
baseurl=file:///mnt/rhel6dvd/Server
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

4. In the end, the new repo file could look like the following (though the media-id will be different depending on the version of RHEL):

[dvd-Server]
name=DVD for Red Hat Enterprise Linux 6.6 Server
mediaid=1359576196.686790
metadata_expire=-1
gpgcheck=1
cost=500
enabled=1
baseurl=file:///mnt/rhel6dvd/Server
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release

5. As a final step, it might be a good idea to run the command yum clean all once.

# yum clean all

How to add optional repositories

To configure access to the supplementary packages in the directories HighAvailability, LoadBalancer, ResilientStorage, and ScalableFileSystem, add additional repositories for them in the same file, e.g.:

[dvd-HighAvailability]
mediaid=1359576196.686790
name=DVD for RHEL6 - HighAvailability
baseurl=file:///mnt/rhel6dvd/HighAvailability
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
enabled=1
gpgcheck=1

[dvd-LoadBalancer]
mediaid=1359576196.686790
name=DVD for RHEL6 - LoadBalancer
baseurl=file:///mnt/rhel6dvd/LoadBalancer
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
enabled=1
gpgcheck=1

[dvd-ResilientStorage]
mediaid=1359576196.686790
name=DVD for RHEL6 - ResilientStorage
baseurl=file:///mnt/rhel6dvd/ResilientStorage
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
enabled=1
gpgcheck=1

[dvd-ScalableFileSystem]
mediaid=1359576196.686790
name=DVD for RHEL6 - ScalableFileSystem
baseurl=file:///mnt/rhel6dvd/ScalableFileSystem
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
enabled=1
gpgcheck=1

Note: If using the above example repos, ensure the value of mediaid is the same as the value from the original media.repo file.

CentOS / RHEL 7 : How to setup yum repository using locally mounted DVD

Configuring yum repository using locally mounted DVD

How to add optional repositories

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