Errors during upgrade postgres15 to postgres17

[boospy]

Hello all :)

I'm running Netbox 4.4.5 on Ubuntu 24.04 LTS Docker Compose. Basically, it works. However, I would like to update Postgresql to the current version 15 before it gets too old. This step also involves switching to redis/valkey.

I followed these instructions: https://github.com/netbox-community/netbox-docker/wiki/Updating#common-issues

That worked, but when importing the DB into the new Postgresql 17, I get a lot of errors. Here is a snippet:

SET
SET
SET
SET
SET
 set_config 
------------
 
(1 row)

SET
SET
SET
SET
ERROR:  relation "public.wireless_wirelesslink" does not exist
ERROR:  relation "public.wireless_wirelesslink" does not exist
ERROR:  relation "public.wireless_wirelesslink" does not exist
ERROR:  relation "public.wireless_wirelesslink" does not exist
ERROR:  relation "public.wireless_wirelesslink" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslangroup" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.wireless_wirelesslan" does not exist
ERROR:  relation "public.vpn_tunneltermination" does not exist
ERROR:  relation "public.vpn_tunneltermination" does not exist
ERROR:  relation "public.vpn_tunneltermination" does not exist
ERROR:  relation "public.vpn_tunnel" does not exist
ERROR:  relation "public.vpn_tunnel" does not exist
ERROR:  relation "public.vpn_tunnel" does not exist
ERROR:  relation "public.vpn_l2vpntermination" does not exist
ERROR:  relation "public.vpn_l2vpntermination" does not exist
...

I also tried the intermediate step via PGSQL16 and omitted the Redis upgrade. Unfortunately, I got the same error message.
What am I doing wrong?

Thank you in advance for your help :)