diff --git a/doc/forum/Using_a_glacier_remote_as_a_backup/comment_2_41d47f0ca2e05e3296face5f89b819da._comment b/doc/forum/Using_a_glacier_remote_as_a_backup/comment_2_41d47f0ca2e05e3296face5f89b819da._comment
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+++ b/doc/forum/Using_a_glacier_remote_as_a_backup/comment_2_41d47f0ca2e05e3296face5f89b819da._comment
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+[[!comment format=mdwn
+ username="https://www.google.com/accounts/o8/id?id=AItOawnwNDA50ZupMvOgpgDqzDRyu5B-mYlVwa4"
+ nickname="Andreas"
+ subject="comment 2"
+ date="2015-05-12T06:52:04Z"
+ content="""
+Actually, I just removed all annexed files to try out disaster recovery. I stumbled across the `undo` command. Unfortunately, it does not seem available on Ubuntu running version 5.20141125 shipped by vivid (`git-annex: Unknown command 'undo'`).
+
+Am I missing something, or how do I get a version supporting `undo`?
+
+thanks
+Andreas
+
+
+"""]]