I think this bug was corrected by the fix for bug #677764 . If that's the case, the package from -proposed is working (see comment #20 from that bugreport).
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/629234 Title: package vsftpd 2.2.2-3ubuntu6 failed to install/upgrade: subprocess installed post-installation script returned error exit status 1 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs