How To Migrate From Trac To Redmine

This tutorial describes how to migrate from trac to redmine. Originally written to perform an upgrade from trac 0.10.3 (old etch server) to Redmine 1.0.1 (squeeze) but was successfully tested with trac 0.11 and 0.12, as well as Redmine 1.0.5 and 1.1.2 (1.2 is also working. This version was also tested to produce the upstream patch but not intensively).

http://www.howtoforge.com/how-to-migrate-from-trac-to-redmine