Just installed Ruby, fetched the latest beta and tried texexec: 26382 26367 TS 20 16:38 ? 00:00:01 \_ /var/www/xxx/bin/ python /var/www/xxx/manage.py run_gunicorn -c /var/www/.../gunicorn- settings.py 26509 26382 TS 20 16:38 ? 00:00:00 \_ /bin/sh -c texexec --batchmode --once hello >> _context.log 26510 26509 TS 20 16:38 ? 00:00:00 \_ /bin/sh /var/ opt/context/tex/texmf-linux-64/bin/texexec --batchmode --once hello 26511 26510 TS 14 16:38 ? 00:00:21 \_ texlua / var/opt/context/tex/texmf-linux-64/bin/mtxrun --usekpse --execute texexec --batchmode --once hello 26512 26511 TS 14 16:38 ? 00:00:00 \_ [uname] <defunct> Argl, I didn't knew texexec also depends on mtxrun/lua... Ok, patching mtxrun again, now I even replace os.uname, but I get the same as above. Hraban