Actor dnf_transaction_check has crashed: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/leapp/repository/actor_definition.py", line 74, in _do_run
    actor_instance.run(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/actors/__init__.py", line 289, in run
    self.process(*args)
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/actors/dnftransactioncheck/actor.py", line 47, in process
    xfs_info=xfs_info, storage_info=storage_info, plugin_info=plugin_info, target_iso=target_iso
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/dnfplugin.py", line 498, in perform_transaction_check
    dnfconfig.exclude_leapp_rpms(context, disable_plugins)
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/dnfconfig.py", line 126, in exclude_leapp_rpms
    _set_excluded_pkgs(context, to_exclude, disable_plugins)
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/dnfconfig.py", line 107, in _set_excluded_pkgs
    context.call(cmd)
  File "/usr/share/leapp-repository/repositories/system_upgrade/common/libraries/mounting.py", line 168, in call
    return run(self.type.make_command(cmd), *args, **kwargs)
  File "/usr/lib/python2.7/site-packages/leapp/libraries/stdlib/__init__.py", line 192, in run
    result=result
CalledProcessError: Command ['systemd-nspawn', '--register=no', '--quiet', '-D', u'/var/lib/leapp/el8userspace', '--setenv=LEAPP_UPGRADE_PATH_TARGET_RELEASE=8.10', '--setenv=LEAPP_NO_RHSM=0', '--setenv=LEAPP_EXPERIMENTAL=0', '--setenv=LEAPP_TARGET_PRODUCT_CHANNEL=ga', '--setenv=LEAPP_UPGRADE_PATH_FLAVOUR=default', '--setenv=LEAPP_COMMON_TOOLS=:/etc/leapp/repos.d/system_upgrade/common/tools:/etc/leapp/repos.d/system_upgrade/el7toel8/tools', '--setenv=LEAPP_COMMON_FILES=:/etc/leapp/repos.d/system_upgrade/common/files:/etc/leapp/repos.d/system_upgrade/el7toel8/files', '--setenv=LEAPP_IPU_IN_PROGRESS=7to8', '--setenv=LEAPP_UNSUPPORTED=0', '--setenv=LEAPP_EXECUTION_ID=3a5acdd4-8c8e-43eb-893b-70bcca3dee92', '--setenv=LEAPP_HOSTNAME=hpy-pdc-srv-1433', 'dnf', 'config-manager', '--save', '--setopt', 'exclude=python2-leapp,snactor,leapp-upgrade-el7toel8,leapp'] failed with exit code 1. 

# cat << EOF > /etc/dnf/dnf.conf
[main]
gpgcheck=1
installonly_limit=3
clean_requirements_on_remove=True
EOF 

--- /usr/share/leapp-repository/repositories/system_upgrade/common/libraries/dnfconfig.py    2024-06-10 21:05:16.000000000 -0400
+++ /usr/share/leapp-repository/repositories/system_upgrade/common/libraries/dnfconfig.py.fix    2024-10-15 04:17:07.543394666 -0400
@@ -30,6 +30,28 @@
     return [item.strip() for item in data.split(sep, maxsplit)]
 
 
+def _check_dnf_conf_file(context):
+    """
+    Minimal check on /etc/dnf/dnf.conf
+    """
+    check_failed = False
+    try:
+        with context.open('/etc/dnf/dnf.conf') as f:
+            data = f.read()
+    except IOError:
+        check_failed = True
+
+    if not check_failed and '[main]' not in data:
+        check_failed = True
+
+    if check_failed:
+        api.current_logger().error('Cannot parse /etc/dnf/dnf.conf')
+        raise StopActorExecutionError(
+            message='Cannot parse /etc/dnf/dnf.conf'
+        )
+
+
 def _get_main_dump(context, disable_plugins):
     """
     Return the dnf configuration dump of main options for the given context.
@@ -86,6 +108,7 @@
     It shouldn't be used on the source system. It is expected this functions
     is called only in the target userspace container or on the target system.
     """
+    _check_dnf_conf_file(context)
     pkgs = _strip_split(_get_main_dump(context, disable_plugins).get('exclude', ''), ',')
     return [i for i in pkgs if i]