But like you misiak, I also get cannot execute binary file when trying to run john
XIO: fatal IO error 11 (Resource temporarily unavailable) on X server ":0.0" after 92 requests (90 known processed) with 0 events remaining. gnome-session[2132]: WARNING: Detected that screensaver has left the bus Window manager warning: Fatal IO error 104 (Connection reset by peer) on display ':1.0'. gnome-screensaver: Fatal IO error 11 (Resource temporarily unavailable) on X server :1.0. bluetooth-applet: Fatal IO error 11 (Resource temporarily unavailable) on X server :1.0. (gnome-panel:2165): GLib-GObject-CRITICAL **: g_object_run_dispose: assertion `G_IS_OBJECT (object)' failed gnome-power-manager: Fatal IO error 11 (Resource temporarily unavailable) on X server :1.0.