On Sun 27 Mar 2011 at 18:48:33 +0430, hamed hosseini wrote: > brian how can do thar ,without os-prober package,or how can install > os-prober,i need easy way,i am new in debian Have you got a file named 30_otheros in /etc/grub.d? Move that to 09_otheros and you will not need os-prober.