hi:) I got the resaon ,it could be my bochs's bug,after I update bochs,it work well. Now grub can load initrd.img,but another obstruction appear: /bin/sh can not access tty ,job controll turned off Does tty need surpport from other hard device ? thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-newbie" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.linux-learn.org/faqs