upgrade from version 1 aborts with error

[Craig Howard]

Fixed in debian. See: http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=638584

This renders the package unusable for pre-existing git annexes.

$ lsb_release -rd
Description: Ubuntu 11.10
Release: 11.10

$ apt-cache policy git-annex
git-annex:
  Installed: 3.20110719
  Candidate: 3.20110719
  Version table:
 *** 3.20110719 0
        500 http://us.archive.ubuntu.com/ubuntu/ oneiric/universe amd64 Packages
        100 /var/lib/dpkg/status

$ dpkg -s git-annex
Package: git-annex
Status: install ok installed
Priority: optional
Section: utils
Installed-Size: 16660
Maintainer: Ubuntu Developers <email address hidden>
Architecture: amd64
Version: 3.20110719
Depends: libc6 (>= 2.7), libffi6 (>= 3.0.4), libgmp10, libpcre3 (>= 8.10), git | git-core, uuid, rsync, openssh-client
Suggests: graphviz, bup, gnupg
Description: manage files with git, without checking their contents into git
 git-annex allows managing files with git, without checking the file
 contents into git. While that may seem paradoxical, it is useful when
 dealing with files larger than git can currently easily handle, whether due
 to limitations in memory, checksumming time, or disk space.
 .
 Even without file content tracking, being able to manage files with git,
 move files around and delete files with versioned directory trees, and use
 branches and distributed clones, are all very handy reasons to use git. And
 annexed files can co-exist in the same git repository with regularly
 versioned files, which is convenient for maintaining documents, Makefiles,
 etc that are associated with annexed files but that benefit from full
 revision control.
Original-Maintainer: Joey Hess <email address hidden>
Homepage: http://git-annex.branchable.com/

[Greg Grossmeier (greg.grossmeier)]

This is fixed in at least the dev version of Ubuntu which has git-annex 3.20121017.