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Added a comment: fast migrate

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https://www.google.com/accounts/o8/id?id=AItOawnfM7ZF0Q5U9k1LljyDXH37cuXU5Gx6gtM 2014-07-05 08:21:21 +00:00 • committed by admin
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[[!comment format=mdwn
username="https://www.google.com/accounts/o8/id?id=AItOawnfM7ZF0Q5U9k1LljyDXH37cuXU5Gx6gtM"
nickname="A"
subject="fast migrate"
date="2014-07-05T08:21:20Z"
content="""
dear Joey and everybody else,
some time ago I used \"git annex migrate\" to bring all my repositories up-to-date; after that I found (to my dismay) that some keys are SHA256, some others are SHA256E, so my data is not really deduplicated ; now, it would possible to migrate from SHAnnnE to SHAnnn (and vice versa) very fast... but currently AFAICS git-annex recomputes the whole checksum, and this (on my USB2.0 old disks) takes forever; may somebody please implement a fast migration?
"""]]