按照网上的说法,在终端输入 sudo update-grub 发现 grub 根本没有找到win7系统

Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.32-22-generic
Found initrd image: /boot/initrd.img-2.6.32-22-generic
Found linux image: /boot/vmlinuz-2.6.32-21-generic
Found initrd image: /boot/initrd.img-2.6.32-21-generic
Found memtest86+ image: /memtest86+.bin
ERROR: nvidia: wrong # of devices in RAID set "nvidia_bfgcebad" [1/2] on /dev/sda
done
Generating grub.cfg ...
Found linux image: /boot/vmlinuz-2.6.32-22-generic
Found initrd image: /boot/initrd.img-2.6.32-22-generic
Found linux image: /boot/vmlinuz-2.6.32-21-generic
Found initrd image: /boot/initrd.img-2.6.32-21-generic
Found memtest86+ image: /memtest86+.bin
ERROR: nvidia: wrong # of devices in RAID set "nvidia_bfgcebad" [1/2] on /dev/sda
done
麻烦各位达人,有知道解决办法的没?
感激不尽!!! 谢谢