Comment 5 for bug 47135

I thing the reasonable solution would be that installation process
asks for confirmation on rewriting MBR at least when another *non-windows*
system on disk partitions is detected... because this case means:
1) those another systems are probably linux/bsd/... systems and there
is probably already grub/lilo/... installed which user may want to preserve
2) this also means that user is as far experienced as he/she prefer one more confirmation dialog over data loss.

Another solution would be display this confirmation dialog if and only if user
choose manual disk partitioning... because of 2)...

I really thing this is one of most critical bugs (if not the most critical one) in ubuntu.. could be fixed for feisty?