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Re: [Duplicity-talk] Removed .cache dir requires GnuPG passphrase

From: Kenneth Loafman
Subject: Re: [Duplicity-talk] Removed .cache dir requires GnuPG passphrase
Date: Wed, 10 Dec 2014 06:55:36 -0600

Duplicity needs the *.manifest and *.sigtar.gz files to be unencrypted in the local cache.  When syncing the remote to the local, the key is needed in order to decrypt those files back into the cache.  When you look in the cache you should see only those kinds of files.

It sounds like collection-status may be wrong about the sync of the data.  What version of duplicity are you running?  What else was deleted along with the .cache?  Maybe it was something that supplied the password to gpg (has nothing to do with private key).


On Wed, Dec 10, 2014 at 6:10 AM, Andrew Langhorn <address@hidden> wrote:

Recently, the contents of the ~/.cache directory of the user which some Duplicity jobs run under were removed. Since then, Duplicity backup jobs have failed to run because the GnuPG passphrase is now required. We don't store the private key on this machine, as we only need it to encrypt with the public key - decryption (if required) takes place elsewhere.

From running 'collection-status', there appear to be some orphaned/incomplete backups on the remote, which I think is a new thing - these don't appear to have been there from before we lost `~/.cache`. 'collection-status' reckons that the local cache has been fully synced from the remote metadata.

I don't want to pass the private key in to Duplicity to get this working, but I don't know how to get over this hurdle.


Thanks! :)

Andrew Langhorn
Web Operations
Government Digital Service

a: 6th Floor, Aviation House, 125 Kingsway, London, WC2B 6NH

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