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Document some requirement for the update to succeed

Ralf Becker 2019-08-18 10:35:23 +02:00
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Update-recommendations-and-troubleshooting.md

@ -4,6 +4,14 @@
If you are not familiar with your Apache/Nginx configuration (including https), or need to ensure only a minimal downtime, the recommendation will be always to do the **painless new installation** on a new host and then an **migration of your database and files** to the new host! Same is true if your old hosts version is no longer supported by from it distribution.
# Requirements for the update to succeed
The update operates under the assumption you have NOT changed any of the following:
* files or backup directory (/var/lib/egroupware/default/files or /var/lib/egrouware/default/backup)
* your database runs on the host AND you use "localhost" as "db_host in header.inc.php
* your EGroupware runs under http(s)://your.domain/egroupware (Setup >> Konfiguration >> Webserver URL: /egroupware).
> If you changed anything of the above, you either need to change it back to the default locations, or you need to fix your installation after the update.
> ***EGroupware will fail after the update without any further changes!***
# How to migrate your data from an existing 17.1 or older installation
1. do a new installation as described for the distribution of the new host
2. enable https using Let's Encrypt following the exzellent instructs from eg. [Digital Ocean](https://www.digitalocean.com/community/tutorials/how-to-secure-apache-with-let-s-encrypt-on-ubuntu-18-04)