I ended up giving up here and upgraded to the wheezy version by hand, as I don't want to maintain a ton of ruby backports out there..
I had to screw around with bundle to make things work, so there may be dependencies missing here. The magic incantation was: # bundle install --without development test See this page for details: https://wiki.koumbit.net/RedmineMaintenance#A1.1.2_to_1.4_upgrade A. -- Premature optimization is the root of all evil - Donald Knuth
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