Possible to relink an existing backup store (for pre-seeding purposes)

Mmh, I just ran a test:

  1. Created a backup from a folder on a linux machine. Ran it once and exported the configuration.
  2. Copied that folder over to a Windows machine. Installed duplicati there and imported the configuration, and edited the source location to match it where the folder is on the windows machine.
  3. When trying to run the back up now I get an error message:

“The backup contains files that belong to another operating system. Proceeding with a backup would cause the database to contain paths from two different operation systems, which is not supported. To proceed without losing remote data, delete all filesets and make sure the --no-auto-compact option is set, then run the backup again to re-use the existing data on the remote store.”

I tried deleting and repairing the database on the windows machine but that did not help. I still get that error message. I’m not sure which “filesets” are meant actually. Can’t be the database, since that was deleted and restored. “Verify files” succeeds.
Any suggestions how to proceed?