I'm just getting started in Duplicity, now that there's a Backblaze B2 plugin. Below is my output; I started a backup without a gpg key, and now it fails (after 180 minutes) because the metadata/backup isn't signed properly. I'd like to just delete any data that's in B2. I see conditional deletions like "remove-older-than" and "remove-all-but-..". But I don't see "nuke it all".
time PASSPHRASE="xxx" /usr/local/bin/duplicity /mnt/nas/pictures --name nas_pictures --num-retries 10 --encrypt-sign-key 44ASDFGH --tempdir /mnt/nas/tmp/ --progress b2://address@hidden/
Local and Remote metadata are synchronized, no sync needed.
Last full backup left a partial set, restarting.
Last full backup date: Mon Apr 25 23:58:40 2016
Reuse configured PASSPHRASE as SIGN_PASSPHRASE
RESTART: Volumes 381 to 382 failed to upload before termination.
Restarting backup at volume 381.
Volume was signed by key None, not 44ASDFGH