How to move /var/lib/influxdb to a different location?

[n0valis]

I need to move my database to a different partition.
So my idea was to rsync everything over and then create a symlink from /var/lib/influxdb to /newlocation/influxdb
But starting the service via systemd fails with no specific reason.
Testwise I started /usr/lib/influxdb/scripts/influxd-systemd-start.sh
But I get the following error message, probably because I cannot start the script as user influxdb:
2023-05-26T23:05:42.961669Z info Unauthorized {"log_id": "0i2_cjaG000", "error": "authorization not found"}

What needs to be done to accomplish what I want?

[n0valis]

Just for those who want to know:
use bind mounts, that works.