I’ve found this in the meantime.
The script shows everything as ok but if I start the upgrade, I get errors regarding
- Keycloak migration status old objects
- some Nagios LDAP objects which have to be removed
- LDAP migration works but the descripiton (Migration of OpenLDAP database backend from BDB to MDB) says to “service start slapd” which results in an error telling to “systemctl daemon-reload”. Not a biggie but I would expect descriptions from Univention staff to be correct.
- errors about ProFTPd (which I have removed now)
- pkgdb sort order (don’t know if this is translated correctly as I use a German version), I couldn’t find anything about this in the forum but it seems to be related to Postgres which I upgraded to v15 some time ago without any problems (afair).
NONE of those showed in the pre-upgrade check script!
But what I have found to be the worst error is that after taking care of all of this (except for the pkgdb errors as those only showed later) the upgrade to 5.1-0 fails and the errata level is 0 (zero) afterwards and nothing works afterwards.
So I’ve gone back to a backup and done everything which I already know I have to do and am making a backup now before trying again.
