How to migrate to a new version Liferay stack without losing data and configs

Whenever I want to upgrade the Liferay Stack I need to rebuild the Liferay portal. restoring a backup of the database only brings back half of the portal. What do I wrong or what do I miss here. This is in the end a showstopper for me. Looking for some clear document about how to do this, I have not found yet.

Have some one a clue for me?
regards
Ashley Pietersen

Hi @a_pietersen,

Thank you for using Bitnami. We suggest you ask in the official forums of the application to get more information about how to migrate the data of this application, in this case you can also check the official documentation.

The steps to migrate an application are normally the database backup creation, the installation of the new version and recovering the backup and some files from the old installation.

You will find some useful information about the database in this link

https://docs.bitnami.com/installer/components/mysql/

Regards,
Jota