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docs: extend append-only repo rollback docs, fixes #3579
(cherry picked from commit 451b22ee51
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@ -201,15 +201,28 @@ copy just in case something goes wrong during the recovery. Since recovery is do
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deleting some files, a hard link copy (``cp -al``) is sufficient.
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The first step to reset the repository to transaction 5, the last uncompromised transaction,
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is to remove the ``hints.N`` and ``index.N`` files in the repository (these two files are
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always expendable). In this example N is 13.
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is to remove the ``hints.N``, ``index.N`` and ``integrity.N``files in the repository (these
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files are always expendable). In this example N is 13.
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Then remove or move all segment files from the segment directories in ``data/`` starting
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with file 6::
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rm data/**/{6..13}
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That's all to it.
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That's all to do in the repository.
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If you want to access this rollbacked repository from a client that already has
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a cache for this repository, the cache will reflect a newer repository state
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than what you actually have in the repository now, after the rollback.
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Thus, you need to clear the cache::
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borg delete --cache-only repo
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The cache will get rebuilt automatically. Depending on repo size and archive
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count, it may take a while.
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You also will need to remove ~/.config/borg/security/REPOID/manifest-timestamp.
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Drawbacks
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+++++++++
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