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[Chris Bero <question284779@xxxxxxxxxxxxxxxxxxxxx>]

New question #284779 on Duplicity:
https://answers.launchpad.net/duplicity/+question/284779

I'm excited to be using duplicity with some backups, but have run into some trouble and would like to know if it's recoverable.

Using Duplicity version 0.7.06 I backed up a 1.8TB set of files to a local NAS via an NFS mount. This took many attempts, and a week of tinkering to accomplish. I had to restart the process due to issues such as gpg-agent timing out the passphrase. Eventually the backup completed successfully, but I don't remember if it was fresh (all NAS-side files removed first) or had been resumed. This will be something to watch better next time.

I went on to immediately test the restore process by bringing the files back to a spare 2TB partition. Each volume is 100M.

# duplicity --asynchronous-upload --force --num-retries 10 -v9 file:///mnt/bkup /mnt/tmp/berocs

Which made it to volume 7485 of 13821. 

Processed volume 7484 of 13821
Registering (mktemp) temporary file /tmp/duplicity-UKeud7-tempdir/mktemp-bdrFu_-7494
Deleting /tmp/duplicity-UKeud7-tempdir/mktemp-bdrFu_-7494
Forgetting temporary file /tmp/duplicity-UKeud7-tempdir/mktemp-bdrFu_-7494
Processed volume 7485 of 13821
Registering (mktemp) temporary file /tmp/duplicity-UKeud7-tempdir/mktemp-61HOHl-7495
Invalid data - SHA1 hash mismatch for file:
 duplicity-full.20160205T033010Z.vol7485.difftar.gpg
 Calculated hash: 9b905a77192131637bc6ae172a602f0c11896d73
 Manifest hash: 35ffeea04fe95d30c153d841fe445c4c8a87d30e

Releasing lockfile /root/.cache/duplicity/2dc20957bea0e51ed1d54f05c291ab69/lockfile.lock
Removing still remembered temporary file /tmp/duplicity-UKeud7-tempdir/mktemp-61HOHl-7495
Removing still remembered temporary file /tmp/duplicity-UKeud7-tempdir/mkstemp-B8zpTT-1

I'd rather not go volume by volume to recover partial files, as is suggested in other threads concerning this error. Instead, since I still have the original files, is there a way to repair the backup without having to delete and re-transfer all 2TB again?

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