Leapp preupgrade fails with `ImportError: cannot import name report_inhibitors` error when performing in-place upgrade of Red Hat Satellite 6.11 server

Solution Verified - Updated

Environment

  • Red Hat Satellite 6.11
  • Red Hat Enterprise Linux 7.9

Issue

  • Following the procedure outlined in Chapter 4. Upgrading Satellite or Capsule to Red Hat Enterprise Linux 8 In-Place Using Leapp to perform a leapp upgrade of Red Hat Satellite 6.11 server, the leapp preupgrade command in step (6) failed with the following backtrace:

    # leapp preupgrade
Traceback (most recent call last):
  File "/bin/leapp", line 9, in <module>
    load_entry_point('leapp==0.16.0', 'console_scripts', 'leapp')()
  File "/usr/lib/python2.7/site-packages/leapp/cli/__init__.py", line 43, in main
    _load_commands(cli.command)
  File "/usr/lib/python2.7/site-packages/leapp/cli/__init__.py", line 27, in _load_commands
    package = pkgutil.get_loader(package_name).load_module(package_name)
  File "/usr/lib64/python2.7/pkgutil.py", line 246, in load_module
    mod = imp.load_module(fullname, self.file, self.filename, self.etc)
  File "/usr/lib/python2.7/site-packages/leapp/cli/commands/list_runs/__init__.py", line 6, in <module>
    from leapp.cli.commands.upgrade.util import fetch_all_upgrade_contexts
  File "/usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py", line 12, in <module>
    from leapp.utils.output import beautify_actor_exception, report_errors, report_info, report_inhibitors
ImportError: cannot import name report_inhibitors

Resolution

  1. Apply the steps in the Diagnostic Steps section of this solution. If the outcomes match, proceed with the next steps.

  2. Update the python-libs and leapp-upgrade-el7toel8 packages on the Satellite server:

       # satellite-maintain packages unlock

   # yum update python-libs

   # yum update leapp-upgrade-el7toel8

   # satellite-maintain packages lock

  3. Verify that the outputs from the following commands match with the correct outputs as described in the Diagnostic Steps section of the solution:

  # ls -ltr /usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py

  # rpm -qf /usr/lib/python2.7/site-packages/leapp/cli/*

  # rpm -qf /usr/lib64/python2.7/pkgutil.py
  1. Rerun the command:
# leapp preupgrade

For more KB articles/solutions related to Red Hat Satellite 6.x LEAPP Issues, please refer to the Consolidated Troubleshooting Article for Red Hat Satellite 6.x LEAPP Issues

Diagnostic Steps

  • Verify the size of the /usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py file referred to in the traceback:

    # ls -ltr /usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py
-rw-r--r-- 1 root root 6218  5 Jun   2023 /usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py

    The correct size should be:

    # ls -ltr /usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py
-rw-r--r--. 1 root root 6201 Aug 23 14:40 /usr/lib/python2.7/site-packages/leapp/cli/commands/upgrade/__init__.py

  • Examine the output from the following commands:

      # rpm -qf /usr/lib/python2.7/site-packages/leapp/cli/*
  leapp-upgrade-el7toel8-0.18.0-3.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch

  # rpm -qf /usr/lib64/python2.7/pkgutil.py
  python-libs-2.7.5-93.el7_9.x86_64

    The correct package versions are:

      # rpm -qf /usr/lib/python2.7/site-packages/leapp/cli/*
  leapp-0.16.0-1.el7_9.noarch
  leapp-upgrade-el7toel8-0.19.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch
  leapp-0.16.0-1.el7_9.noarch

  # rpm -qf /usr/lib64/python2.7/pkgutil.py
  python-libs-2.7.5-94.el7_9.x86_64
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