Bug#728359: debian-installer: Install bootloader earlier?

[Thiemo Nagel <thiemo.nagel@gmail.com>]

Package: debian-installer
Severity: wishlist
Tags: d-i

Hello,

I haven't got replies to my post on debian-boot, so I'm archiving this topic
as a whishlist bug:

I've been wondering why the bootloader is installed only at the very end of
the installation. This means that an aborted installation (eg.  due to power
failure or system crash) leaves the system in an unbootable state. Would it be
possible to install the bootloader before tasksel is being run? That should
significantly reduce the time window during which a crash yields an unbootable
system.

Cheers,
Thiemo