How to create local RHEL DVD repository for package installations ?

This blog tells you how to create a local repository from a RHEL installer DVD iso image.


Firstly please note that  RHEL is not a free software.  To get access to the fully up-to-date repositories (RHN) a  paid subscription is required.Without this subscription it will not be possible to get security updates and the newest versions of packages. An alternative for using RHEL would be CentOSor Scientific Linux. Both are free and almost identical to RHEL. The below steps should only be used for testing, studying or evaluation purposes. The steps below are based on RHEL server 6.4 but the basics are the same for other versions.

Pre Conditions prior performing the following setup steps.
- RHEL installed system,
- ~4-8 GB free space on disk.


All the below steps are to be executed with root privileges.

1. A directory needs to be created which will contain the repository with following command:
    $ mkdir /mnt/rhel_repo

2. Mount the DVD disk or iso image with following command.
    
    $ mount /dev/dvd /media
     
    If an image is used instead of a DVD you can mount it as follows (with following command):
    
    $ mount -o loop /path/to/rhel.6.4.iso /media

3. Copy the contents from the DVD to the newly created directory with following command:
  
    $ cp -ar /media/. /mnt/rhel_repo/

4. Set up the system to use the freshly created repository with following command:
    $ cd /etc/yum.repos.d/
    $ rm *.repo
    $ vi rhel64dvd.repo


    # add the following information:

    [rhel-dvd-server]
     name=Red Hat Enterprise Linux - DVD Server Repository
     baseurl=file:///mnt/rhel_6.4_dvd/Server
     enabled=1
     gpgkey=file:///mnt/rhel_6.4_dvd/RPM-GPG-KEY-redhat-release
     gpgcheck=1


     [rhel-dvd-lb]
     name=Red Hat Enterprise Linux - DVD Load Balancer Repository
     baseurl=file:///mnt/rhel_6.4_dvd/LoadBalancer
     enabled=1
     gpgkey=file:///mnt/rhel_6.4_dvd/RPM-GPG-KEY-redhat-release
     gpgcheck=1


      [rhel-dvd-ha]
      name=Red Hat Enterprise Linux - DVD High Availability Repository
      baseurl=file:///mnt/rhel_6.4_dvd/HighAvailability
      enabled=1
      gpgkey=file:///mnt/rhel_6.4_dvd/RPM-GPG-KEY-redhat-release
      gpgcheck=1

5.  Disable RHN and activate DVD repository:
      $ vi /etc/yum/pluginconf.d/rhnplugin.conf
      # make sure enabled is set to 0 (enabled = 0)


6. Now run the following command in Terminal.
    $ yum clean all

    Loaded plugins: product-id, security, subscription-manager
    This system is not registered to Red Hat Subscription Management. You can use subscription-             manager to register.
    Cleaning repos: rhel-dvd-ha rhel-dvd-lb rhel-dvd-server
    Cleaning up Everything


    $ rpm --import /mnt/rhel_6.4_dvd/RPM-GPG-KEY-redhat-release

5. Now following yum update command to update the yum repositories.

    $ yum update
  
    Output :
    Loaded plugins: product-id, security, subscription-manager
   This system is not registered to Red Hat Subscription Management. You can use subscription-             manager to register.
    Setting up Update Process
    No Packages marked for Update


    From this point on you can use yum to search, install and remove packages that are available on         the local system.

    The following message will still be visible but it can be ignored.
   
    This system is not registered to Red Hat Subscription Management.

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