mabar7 - If you're not concerned about keeping you current archives and configuration, the simplest approach is to completely remove Orchid and reinstall. ifThe following command will completely remove Orchid from your Pi with the exception of your archives.
sudo dpkg --purge ipc-orchid
You should then remove all of the archive video files with the command:
sudo rm -rf /orchives
where /orchives is the directory you assigned as the archive directory in your original Orchid setup.
After completely removing Orchid, you can now reinstall and set the archive directory to your mounted external drive.
However, if you would like to keep your existing setup and archives, you could try making a symlink from your current archive directory to your new one. Warning: This is an advanced maneuver. Proceed with caution.
1. Stop the Orchid service
sudo systemctl stop orchid.service
2. Move the contents of your current archive directory to your new directory. Let's assume your current archive directory is /orchives and your new desired archive directory is /orchives2
sudo mv /orchives/<your_server_id> /orchives2
3. Create a symlink from /orchives -> /orchives2
sudo ln -s /orchives2 /orchives
4. Verify that your symlink worked. If you run
ls /orchives
it should return the contents of /orchives2 which should be a folder with the name of your server ID.
5. Start Orchid again
sudo systemctl start orchid.service