The same here... One harddisk (two partitions ext4, swap), no UEFI-system, only Ubuntu installed, automatic update last night from 13.10 to 14.04 crashed grub/Ubuntu - no grub-fiddling before...
The same here... One harddisk (two partitions ext4, swap), no UEFI-system, only Ubuntu installed, automatic update last night from 13.10 to 14.04 crashed grub/Ubuntu - no grub-fiddling before...