⁠4.3. Installation Media

Installation media are sources of files that the installer can use to install the base operating system on a machine when you provision RHEL OpenStack Platform. Installation media must be in the format of an operating system installation tree, and must be accessible to the machine on which the user interface is installed via a URL or an NFS share. The installer accesses installation media via installation media entries in the user interface that define details regarding the installation media such as their location and the operating system family they represent.

Note

For information on how to use a CD or ISO file to prepare an installation tree, see Section 3.2, “Preparing an Installation Medium”.

Note

By default, the rhel-osp-installer command prompts you to specify the location of an installation medium during the installation process, and creates a default installation media entry based on this location. If you skipped this step when you installed the user interface, you must manually edit the RedHat mirror installation media entry and specify the location of a Red Hat Enterprise Linux 7 installation medium before you can provision RHEL OpenStack Platform.

⁠4.3.1. Creating an Installation Media Entry

Create an installation media entry in the user interface to represent an installation medium for installing a base operating system on a machine when you provision RHEL OpenStack Platform.
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Procedure 4.3. Creating an Installation Media Entry

  1. From the title bar in the main screen of the user interface, click Hosts → Installation Media.
    ⁠
    The More → Provisioning → Installation Media menu item being selected.

    Figure 4.3. The Installation Media Menu Entry

  2. Click New Medium.
  3. In the Name text field, enter a name to represent the installation media entry in the user interface.
  4. In the Path text field, enter the path of a URL or an NFS share containing the installation tree. The following variables can be used in the path to represent multiple different system architectures and versions:
    $arch
    The system architecture, for example x86_64.
    $version
    The operating system version, for example 7.2.
    $major
    The operating system major version, for example 7.
    $minor
    The operating system minor version, for example 0.
    ⁠

    Example 4.1. HTTP Path

    http://download.example.com/rhel/$version/Server/$arch/os/
    ⁠

    Example 4.2. NFS Path

    nfs://download.example.com:/rhel/$version/Server/$arch/os/
  5. Select Red Hat from the Operating system family list.
  6. Click Submit.

⁠4.3.2. Specifying the Installation Media Entry for Provisioning

If you did not configure an installation media entry when you installed the user interface, you must manually specify an installation media entry for Red Hat Enterprise Linux 7 that the installer can use for provisioning. The following procedure assumes you have already created an installation media entry that you can specify.
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Procedure 4.4. Specifying the Installation Media Entry for Provisioning

  1. From the title bar in the main screen of the user interface, click Configure → Host groups.
  2. Click the base_RedHat_7 host group.
  3. Click the Operating System tab.
  4. Select an installation media entry from the Media list.
  5. Click Submit.
You have specified the installation media entry that the installer uses to install the base operating system on hosts when provisioning a RHEL OpenStack Platform environment.

⁠4.3.3. Removing an Installation Media Entry

Remove an existing installation media entry from the user interface if you no longer require that entry or the installation medium it represents is no longer available.
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Procedure 4.5. Removing an Installation Media Entry

  1. From the title bar in the main screen of the user interface, click Hosts → Installation Media to open the Installation Media page.
  2. Click the Delete button that corresponds to the installation media entry to delete.
  3. Click OK when prompted.

Note

Removing an installation media entry only removes the association with the installation medium from the user interface, and does not delete the installation medium itself.