Ok, I can check what happens step by step when version 0.65 comes out.

Or do you prefer, that I debug it now?

Can please try the following? svn co http://svn.contextgarden.net/minimals/bin/tex/linux-64/luatex cd luatex mkdir x svn add x svn cp current/luatex x/ ls -l x/ I'm curious if the file x/luatex is executable on your system or not. It is on mine and it should be on yours, but maybe something weird happens. Mojca