Bug#774926: debian-installer: please default to grub-ieee1275 on powerpc instead of yaboot

[Mathieu Malaterre <malat@debian.org>]

Package: debian-installer
Severity: wishlist

grub-ieee1275 is a powerful and effective bootloader for powerpc
machines.  It is significantly more flexible at runtime than yaboot, and
provides a user experience more roughly comparable with installs on i386
and amd64 machines.

Please have debian-installer on powerpc default to grub-ieee1275
instead of yaboot, not only in expert mode but also default mode.

See #664128

yaboot is pretty much dead upstream (last release is from 2011) and it
is unusable on some arches or setup (#719479, #495930, #697813,
#322540).

Thanks