Need to set up yum repository for locally-mounted DVD on Red Hat Enterprise Linux 7

Resolution

Please note: If the system is registered to Red Hat Network, yum can be run with the --noplugins option to prevent it from connecting to RHN. The safer option would be to unregister the system to avoid updating to the latest release.

1. Mount the RHEL 7 installation ISO to a directory like /mnt, e.g.:

   Raw

   # mount -o loop RHEL7.1.iso /mnt
   

   If you use DVD media , you can mount like below.

   Raw

   # mount /dev/sr0  /mnt
   

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

   Raw

   # cp /mnt/media.repo /etc/yum.repos.d/rhel7dvd.repo
   # chmod 644 /etc/yum.repos.d/rhel7dvd.repo
   

3. Edit the new repo file, changing the gpgcheck=0 setting to 1 and adding the following 3 lines

   Raw

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

   In the end, the new repo file could look like the following (though the mediaid will be different depending on the version of RHEL):

   Raw

   [InstallMedia]
   name=DVD for Red Hat Enterprise Linux 7.1 Server
   mediaid=1359576196.686790
   metadata_expire=-1
   gpgcheck=1
   cost=500
   enabled=1
   baseurl=file:///mnt/
   gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY-redhat-release
   

4. clear the related caches by yum clean all and subscription-manager clean once

   Raw

   # yum clean all
   # subscription-manager clean
   

5. check whether you can get the packages list from the DVD repo

   Raw

   # yum  --noplugins list
   

6. if no problem , you will update

   Raw

   # yum  --noplugins update