Installing OpenCHAI Packages
============================

Multiple **OpenCHAI software stacks** are available for download, supporting
different **operating system versions** and **OpenCHAI releases**.

Supported operating systems include:

- AlmaLinux 8.9
- Rocky Linux 9.4
- Rocky Linux 9.6

You can browse all available OpenCHAI package options at:

`OpenCHAI Package Vault <https://hpcsangrah-test.pune.cdac.in:8008/vault/OpenCHAI/>`_

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Available OpenCHAI Versions
---------------------------

The following OpenCHAI package variants are available for download:

- ``openchai_ha_full_v1.24.0.tgz``
- ``openchai_ha_base_v1.24.0.tgz``
- ``openchai_ha_full_v1.25.0.tgz``
- ``openchai_ha_base_v1.25.0.tgz``

Select the **operating system** and **OpenCHAI version** appropriate for your
deployment environment.

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Example: Download OpenCHAI Packages
-----------------------------------

The following examples demonstrate downloading OpenCHAI packages for
**AlmaLinux 8.9** and **Rocky Linux 9.6**.
The same procedure can be followed for other supported versions.

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For AlmaLinux 8.9
-----------------

Create the destination directory:

.. code-block:: bash

   # Change to the OpenCHAI repository directory cloned from the GitHub repository
   cd OpenCHAI
   mkdir -p ./hpcsuite_registry/hostmachine_reg/alma8.9

Download and extract the OpenCHAI package:

.. code-block:: bash

   wget --no-check-certificate -O - https://hpcsangrah-test.pune.cdac.in:8008/vault/OpenCHAI/hpcsuite_registry/hostmachine_reg/alma8.9/openchai_ha_full_v1.25.0.tgz | tar -xzvf - -C "./hpcsuite_registry/hostmachine_reg/alma8.9"

Verify that the OpenCHAI stack has been extracted correctly:

.. code-block:: bash

   ls -lh ../OpenCHAI/hpcsuite_registry/hostmachine_reg/alma8.9/

----

For Rocky Linux 9.6
------------------

Create the destination directory:

.. code-block:: bash

    # Change to the OpenCHAI repository directory cloned from the GitHub repository
   cd OpenCHAI
   mkdir -p ./hpcsuite_registry/hostmachine_reg/rocky9.6

Download and extract the OpenCHAI package:

.. code-block:: bash

   wget --no-check-certificate -O - https://hpcsangrah-test.pune.cdac.in:8008/vault/OpenCHAI/hpcsuite_registry/hostmachine_reg/rocky9.6/openchai_ha_full_v1.25.0.tgz | tar -xzvf - -C "./hpcsuite_registry/hostmachine_reg/rocky9.6"

Verify that the OpenCHAI stack has been extracted correctly:

.. code-block:: bash

   ls -lh ../OpenCHAI/hpcsuite_registry/hostmachine_reg/rocky9.6/

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Notes
-----

- Ensure the OpenCHAI stack is placed under the correct
  ``hpcsuite_registry/hostmachine_reg/`` directory.