I think it may be caused by the fact that grub-install does not know where is the root directory (the partition where /boot/grub is located on).
maybe something like : sudo mount /dev/sda1 /mnt # where sdb1 is your root partition (or boot partition if you have one) sudo grub-install /dev/sda --root-directory=/mnt # sda is the disk where you want to install grub Or maybe you can do a chroot : sudo mount /dev/sda1 /mnt # root partition (or boot partition) sudo mount -o bind /dev /mnt/dev sudo mount -o bind /proc /mnt/proc sudo mount -o bind /sys /mnt/sys sudo chroot /mnt grub-install /dev/sda # where you want to install grub Hope it can help someone if it works. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/703009 Title: grub-probe: error: cannot stat `aufs'. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/grub2/+bug/703009/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs