Setting up grub-pc (1.98-1ubuntu13) ...
/usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/sda2.  Check your device.map.
Auto-detection of a filesystem module failed.
Please specify the module with the option `--modules' explicitly.
Generating grub.cfg ...
/usr/sbin/grub-probe: error: cannot find a GRUB drive for /dev/sda2.  Check your device.map.
dpkg: error processing grub-pc (--configure):
 subprocess installed post-installation script returned error exit status 1