On Sun 27 Mar 2011 at 14:59:41 +0200, Estelmann, Christian wrote: > 2. Rename /etc/grub.d/30_os-prober to 09_os-prober. Then run update-grub2. > os-prober looks for other OS, just let it executed befor 10_linux This will only work if the os-prober package has been installed. A default Debian installation doesn't have it.