Migrate from centos 7 -> centos 8 with foreman 2.5.1 +katello

Support
1

Hello,

I am testing a migration of foreman 2.5.1/katello 4.1.0 from centos7 to centos 8.5.2111.

The long-term goal here is to advance versions of foreman/katello to the latest, but first must begin with getting into centos 8.

The procedure:

  1. build a centos 8 system (not -stream)
  2. install foreman 2.5.1/Katello 4.1
  3. backup old foreman system (foreman 2.5.1/katello 4.1.0)
  4. restore to new foreman system (foreman 2.5.4 / katello 4.1.4 )

But I can’t do step 4 because step 3 is incomplete. The restore output is shown below.

It appears that I am missing mongo_data.tar.gz.

Rather than fix my foreman installation (I don’t want to spend/waste any time in 2.5.1) can I just do a mongodump and get the same thing?

Running Restore backup
================================================================================
Check if command is run as root user:                                 [OK]
--------------------------------------------------------------------------------
Validate backup has appropriate files:                                [FAIL]

The given directory does not contain the required files or has too many files

All backup directories contain: config_files.tar.gz
An online or remote database backup directory contains: mongo_dump, candlepin.dump, foreman.dump, pulpcore.dump
An offline backup directory contains: mongo_data.tar.gz, pgsql_data.tar.gz
A logical backup directory contains: mongo_dump, candlepin.dump, foreman.dump, pulpcore.dump, mongo_data.tar.gz, pgsql_data.tar.gz
Including pulp_data.tar is optional and will restore pulp data to the filesystem if included.

Only the following files were found: pgsql_data.tar.gz, config_files.tar.gz, metadata.yml

--------------------------------------------------------------------------------
Scenario [Restore backup] failed.```



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2

if you’re running 2.5/4.1, there is no mongodb anymore, but it seems you got an old/buggy foreman_maintain (0.8.6) with it.

you could try taking 0.8.21 from the 3.0 repos?

3

one more thing, after you have restored the backup on EL8, you need to reindex the database (runuser -u postgres -- reindexdb -a) as otherwise you might get index corruption.

newer foreman maintain takes care of that, but not the one in 2.5/3.0