AIX

Problem ist solved, is it possible to close a posting for comments?

I installed dnf from the toolbox image availible on ESS (ESD-Toolbox_for_Linux_Apps_Common_7.1-7.3_112023_LKT010326.tar.gz)

on a lpar running AIX 7200-05-05-2246

Goal is to install packages with ansible using dnf.

That fails with a fatal error:

fatal: [lpar23-7255]: FAILED! => {"changed": false, "msg": "`python3-dnf` is not installed, but it is requiredfor the Ansible dnf module.", "results": []}

the package python-dnf 3 is installed: 

#rpm -qa | grep python3-dnf

python3-dnf-4.2.17-32_51.ppc

If we want to import the dnf module into python3 we get an error:

#/opt/freeware/bin/python3

Python 3.9.18 (main, Sep 19 2023, 04:57:07)

[GCC 10.3.0] on aix

Type "help", "copyright", "credits" or "license" for more information.

>>> import dnf

Traceback (most recent call last):

  File "<stdin>", line 1, in <module>

  File "/opt/freeware/lib/python3.9/site-packages/dnf/__init__.py", line 32, in <module>

    import dnf.base

  File "/opt/freeware/lib/python3.9/site-packages/dnf/base.py", line 29, in <module>

    import libdnf.transaction

  File "/opt/freeware/lib/python3.9/site-packages/libdnf/__init__.py", line 3, in <module>

    from . import common_types

  File "/opt/freeware/lib/python3.9/site-packages/libdnf/common_types.py", line 13, in <module>

    from . import _common_types

ImportError:    0509-022 Cannot load module /opt/freeware/lib/python3.9/site-packages/libdnf/_common_types.so.

        0509-026 System error: Cannot run a file that does not have a valid format.

The .so-file got delivered from the following package:

# rpm -qf /opt/freeware/lib/python3.9/site-packages/libdnf/_common_types.so

python3.9-libdnf-0.39.1-32_52.ppc

What is wrong there?

We have a lpar installed with 7300-02-01-2346 and the same toolbox image from above and it works fine, only difference, it is using python3.9-libdnf-0.39.1-64_52.ppc

------------------------------
Robert Kampermann
------------------------------

Hi Robert,

if you would ask your question in AIX Open Source community, you'd get your answer faster ;-)

It is not broken, "it works as designed" (c) ;-) The reason for this design is not known for me, but if you use Ansible to install DNF packages (and it looks like, otherwise you wouldn't get the message), you should use 32-bit python on AIX 7.2.

Set specific ansible_python_interpreter for the task:

---
- name: Install DNF packages on AIX
  hosts: all
  gather_facts: true
  vars:
    package: httpd

  tasks:
  - name: Install packages on AIX 7.2
    ansible.builtin.dnf:
      name: "{{ package }}"
      use_backend: dnf4
    vars:
      ansible_python_interpreter: /opt/freeware/libexec/python3.9_32
    when: ansible_facts.distribution_version == '7.2'
  - name: Install packages on AIX 7.3
    ansible.builtin.dnf:
      name: "{{ package }}"
      use_backend: dnf4
    vars:
      ansible_python_interpreter: /opt/freeware/bin/python3.9
    when: ansible_facts.distribution_version == '7.3'