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====== Creating a Local Yum Repository Using an ISO Image ======


**__Note__**
The system must have sufficient storage space to host a full Oracle Linux Media Pack DVD image (approximately 3.5 GB for Oracle Linux Release 6 Update 3).

To create a local yum repository (for example, if a system does not have Internet access):

  - On a system with Internet access, download a full Oracle Linux DVD image from the Oracle Software Delivery Cloud at http://edelivery.oracle.com/linux onto removable storage (such as a USB memory stick). For example, V33411-01.iso contains the Oracle Linux Release 6 Update 3 Media Pack for x86 (64 bit).

**__Note__**
You can verify that the ISO was copied correctly by comparing its checksum with the digest value that is listed on edelivery.oracle.com, for example:

<code bash>
# sha1sum V33411-01.iso
7daae91cc0437f6a98a4359ad9706d678a9f19de V33411-01.iso
</code>

  - Transfer the removable storage to the system on which you want to create a local yum repository, and copy the DVD image to a directory in a local file system.

<code bash>
# cp /media/USB_stick/V33411-01.iso /ISOs
</code>
  - Create a suitable mount point, for example /var/OSimage/OL6.3_x86_64, and mount the DVD image on it.

<code bash>
# mkdir -p /var/OSimage/OL6.3_x86_64
# mount -o loop,ro /ISOs/V33411-01.iso /var/OSimage/OL6.3_x86_64
</code>

**__Note__**
Include the read-only mount option (ro) to avoid changing the contents of the ISO by mistake.

  - Create an entry in /etc/fstab so that the system always mounts the DVD image after a reboot.

<code bash>
/ISOs/V33411-01.iso /var/OSimage/OL6.3_x86_64 iso9660 loop,ro 0 0
</code>

In the /etc/yum.repos.d directory, edit the existing repository files, such as public-yum-ol6.repo or ULN-base.repo, and disable all entries by setting enabled=0.

Create the following entries in a new repository file (for example, /etc/yum.repos.d/OL63.repo).

<code bash>
[OL63]
name=Oracle Linux 6.3 x86_64
baseurl=file:///var/OSimage/OL6.3_x86_64
gpgkey=file:///etc/pki/rpm-gpg/RPM-GPG-KEY
gpgcheck=1 
enabled=1
</code>
 
Clean up the yum cache.

<code bash>
# yum clean all
</code>

Test that you can use yum to access the repository.

<code bash>
# yum repolist
Loaded plugins: refresh-packagekit, security
...
repo id                          repo name                                status
OL63                             Oracle Linux 6.3 x86_64                  25,459
repolist: 25,459
</code>
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