The shell command
"/l/www/moodle/filter/tex/mimetex.linux" -e "/m/floppy/avle/moodledata/filter/tex/c00b0ed300f8ef2147fedf4a47f4eb53.gif" -- '\Large \ell = \int_{a}^{b}\sqrt{1+f'\''(x)^{2}}\,dx.'
returned status = 126
Image not found!
Please try the debugging script