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Re: [rdiff-backup-users] remove a single backup from increments

From: Robert Nichols
Subject: Re: [rdiff-backup-users] remove a single backup from increments
Date: Sun, 09 Mar 2014 14:02:26 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20131030 Thunderbird/17.0.10

On 03/08/2014 02:55 AM, Marcus Schopen wrote:

how do I remove a single backup run from increments,
eg. the one at "Sat Mar  8 07:02:51 2014":

# rdiff-backup -l .
Found 5 increments:
     increments.2014-03-04T18:18:57+01:00.dir   Tue Mar  4 18:18:57 2014
     increments.2014-03-05T07:01:18+01:00.dir   Wed Mar  5 07:01:18 2014
     increments.2014-03-06T07:01:58+01:00.dir   Thu Mar  6 07:01:58 2014
     increments.2014-03-07T07:01:51+01:00.dir   Fri Mar  7 07:01:51 2014
     increments.2014-03-08T07:02:51+01:00.dir   Sat Mar  8 07:02:51 2014
Current mirror: Sat Mar  8 09:26:53 2014

Basically, you can't. Doing that would require merging of successive
increments, which has been a frequently requested feature ("I really
don't need all the daily increments more than a year back in the
history"). The librsync library has no support for merging two (or more)
increments, so the only recourse would be to re-create the files at time
N and time N-m and recalculate the deltas. Doing that in a robust and
recoverable way over an entire repository would be decidedly

Right now, your best bet would be to use Dominic's script to revert two
levels, bringing the mirror back to 2014-03-07, and move on from there.

Bob Nichols     "NOSPAM" is really part of my email address.
                Do NOT delete it.

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