> DI asks if you want to install grub into the MBR of the disk or a > partition, and if you select to install it into your Linux partition, > it tells you that tis is a bad idea and refuses to do it :-(
What DI does depends on what's on the disk before it installs Linux, principally if it thinks that it's installing a single or multiple systems disk. In the case I speak of, there was a multiboot on the MBR and an empty partition prepared to receive Linux. DI silently erased the MBR that contained something and left empty the PBR that contained nothing.