How to import old telegraf databases to InfluxDB v2

Hi,

thanks - it´s a debian default package installation with no folder customizations. At /etc/influxdb/ there is this config.toml file, but it seems to be updated / migrated to v2 already.

The series is saved at /var/lib/influxdb/telegraf/autogen/ - it seems to be the default telegraf database from v1. Is there any telegraf migration, which I need to run? The influx installation was upgraded a while ago via apt update it seems. I didn´t recognize it and now I´m trying to get all services up again and running.