root@ubuntu:/home/ubuntu mount /dev/sda6 /mnt/root@ubuntu:/home/ubuntu mount -t proc none /mnt/procroot@ubuntu:/home/ubuntu mount -o bind /dev /mnt/devroot@ubuntu:/home/ubuntu chroot /mnt/root@ubuntu:/ grub-install --recheck /dev/sdbInstallation finished. No error reported.This is the contents of the device map /boot/grub/device.map.Check if this is correct or not. If any of the lines is incorrect,fix it and re-run the script `grub-install39;.(hd0) /dev/sda(hd1) /dev/sdbroot@ubuntu:/ update-grub2Generating grub.cfg .Found linux image: /boot/vmlinuz-2.6.31-14-genericFound memtest86+ image: /boot/memtest86+.binCannot find list of partitionsdoneroot@ubuntu:/ exitroot@ubuntu:/home/ubuntu umount /mnt/dev /mnt/proc /mnt