Upgrading from Satellite 6.9 to Satellite 6.10 fails with error "undefined method operatingsystems' for nil:NilClass"

Environment

• Red Hat Satellite 6.10

Issue

• Upgrading from Satellite 6.9 to Satellite 6.10 fails with error undefined method operatingsystems' for nil:NilClass during the db:migrate step i.e. while applying the 20210115124508 TemplateKindRegistration migration:

     undefined method operatingsystems' for nil:NilClass /usr/share/foreman/db/migrate/20210115124508_template_kind_registration.rb:26:in block in up'
     /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/relation/delegation.rb:87:in each' /opt/theforeman/tfm/root/usr/share /gems/gems/activerecord-6.0.3.7/lib/active_record/relation/delegation.rb:87:in each'
     /usr/share/foreman/db/migrate/20210115124508_template_kind_registration.rb:25:in up' /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7 /lib/active_record/migration.rb:831:in exec_migration'
     /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/migration.rb:812:in block (2 levels) in migrate' /opt/rh/rh-ruby27/root/usr /share/ruby/benchmark.rb:293:in measure'
     /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/migration.rb:811:in block in migrate' /opt/theforeman/tfm/root/usr/share  /gems/gems/activerecord-6.0.3.7/lib/active_record/connection_adapters/abstract/connection_pool.rb:471:in with_connection'
  /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/migration.rb:810:in migrate' /opt/theforeman/tfm/root/usr/share /gems/gems/activerecord-6.0.3.7/lib/active_record/migration.rb:1002:in migrate'
  /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/migration.rb:1310:in block in execute_migration_in_transaction'   /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/migration.rb:1361:in block in ddl_transaction'
     /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/connection_adapters/abstract/database_statements.rb:280:in block in transaction' /opt/theforeman/tfm/root/usr/share/gems/gems/activerecord-6.0.3.7/lib/active_record/connection_adapters/abstract/transaction.rb:280:in block in within_new_transaction'
     /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:26:in block (2 levels) in synchronize' /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in handle_interrupt'
     /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:25:in block in synchronize' /opt/theforeman/tfm/root/usr/share/gems/gems/activesupport-6.0.3.7/lib/active_support/concurrency/load_interlock_aware_monitor.rb:21:in handle_interrupt'
  

Resolution

• This issue is fixed with an ERRATA release mentioned in Public Red Hat Bugzilla This content is not included.2070991.

• However, the issue still persists while performing an upgrade to 6.11 which is being tracked under Public Red Hat Bugzilla This content is not included.2063190.

• For more information, open a This content is not included.support case with Red Hat Technical Support Team.

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

Diagnostic Steps

• Execute the foreman-rake db:migrate --trace --verbose command to observe the following error traceback:

  [root@nsatellite ~]# foreman-rake db:migrate --trace --verbose
  'ErbParser' is ignored.
  'RubyParser' is ignored.
  ** Invoke db:migrate (first_time)
  ** Invoke db:load_config (first_time)
  ** Invoke environment (first_time)
  ** Execute environment
  API controllers newer than Apipie cache! Run apipie:cache rake task to regenerate cache.
  ** Execute db:load_config
  ** Invoke plugin:refresh_migrations (first_time)
  ** Invoke environment
  ** Execute plugin:refresh_migrations
  ** Execute db:migrate
  == 20210115124508 TemplateKindRegistration: migrating =========================
  rake aborted!
  StandardError: An error has occurred, this and all later migrations canceled:
  

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