[[!comment format=mdwn
 username="http://joeyh.name/"
 ip="4.153.253.113"
 subject="comment 8"
 date="2012-12-06T15:41:31Z"
 content="""
Have you rebuilt git-annex since you upgraded git? 

This seems most likely to be the problem; the version of git in squeeze requires git-annex behave differently when using git check-attr, and if you have a version of git-annex built for it, it will do things the new git dislikes.
"""]]