Fehler beim Öffnen von Framebuffer Device

qemu -m 256 -hda /path/image.img -boot c -full-screen -net nic,macaddr=xx:xx:xx:xx:xx:xx,vlan=x -net user,vlan=x -net nic,macaddr=xx:xx:xx:xx:xx:xx,vlan=x -net tap,vlan=x

#
     =======================|  DirectFB 1.0.1  |=======================
          (c) 2001-2007  The DirectFB Organization (directfb.org)
          (c) 2000-2004  Convergence (integrated media) GmbH
        ------------------------------------------------------------

(*) DirectFB/Core: Single Application Core. (2008-08-18 12:36)
(!) Direct/Util: opening '/dev/fb0' and '/dev/fb/0' failed 
    --> No such file or directory
(!) DirectFB/FBDev: Error opening framebuffer device!
(!) DirectFB/FBDev: Use 'fbdev' option or set FRAMEBUFFER environment variable. 
(!) DirectFB/Core: Could not initialize 'system' core! 
    --> Initialization error!
Could not initialize SDL - exiting