Bug#611045: debian-installer: GRUB always installs in /dev/sda

[Tobias Bußmann <e.t.bussmann@ing.twinwave.net>]

serverity 611045 wishlist
retitle 611045 debian-installer: find a better way of detecting default GRUB
bootloader install location
thanks

I just realized that if you answer 'no' on the question if grub shall be
installed in the MBR, you can not only specify a partition as an alternative
location but also the MBR of a different device. I must have misunderstood
that question. If you specify the location for installation, grub installs
just fine.

So the remaining part bug / feature request is to have a better algorithm to
find the default location for intalling the bootloader to instead of using
always the MBR of the first disk.