Ok I reinstall, format the root / partition with the ext4 file system. If you still have not found the solution, the installer should warn about.this. https://bugs.launchpad.net/ubuntu/+source/grub-installer/+bug/1270729
Ok I reinstall, format the root / partition with the ext4 file system. If you still have not found the solution, the installer should warn about.this. https:/ /bugs.launchpad .net/ubuntu/ +source/ grub-installer/ +bug/1270729