Use Pairing Data from old Z2M V. 1.40.1 in V. 2.6.3

[patpommi]

Hello!

I had/have an old installation of Z2M (V. 1.40.1). To be on the safe side, I installed the latest version of Z2M on a new SD card for the update.
It runs without any problems.
I paired one new device. It works!

I have read the post #28783.
Now I have tried to adjust the configuration.yaml according to the post ‘Z2M 2.0.0 Breaking Changes’.
I also copied the devices from the old installation into the new configuration.yaml.
I also copied the database.db from the old system to the new one.
Unfortunately, without success. Even after rebooting, only the one new device is displayed.
What should I do?
Which files do I need to copy?
Or do I have to pair them all again manually?

Many thanks in advance,
Ralf

The Problem seems to be solved.

I stopped z2m with: sudo systemctl stop zigbee2mqtt
And copied the following files from my old z2m:
configuration.yaml
coordinator_backup.json
database.db

And i made the changes described in the post ‘Z2M 2.0.0 Breaking Changes’.
Then the decices seems to be paared.
I have to test still some of them.