On a usrmerged system (now the default), tiger outputs spurious messages like these: NEW: --WARN-- [lin001w] File `/bin/apt-get' does not belong to any package. NEW: --WARN-- [lin001w] File `/bin/chsh' does not belong to any package. NEW: --WARN-- [lin001w] File `/bin/cut' does not belong to any package. I suspect the optimization isn't usrmerge-aware because the "non-optimized" version which uses dpkg directly works just fine. Francois