Comment # 2 on bug 1088579 from Josef Reidinger

(In reply to Steffen Winterfeldt from comment #1)
> I believe it means 'partition that has the /boot dir'. Maybe change the
> wording to 'Boot from system partition (/dev/sda9)' or so?
> 
> Josef?

well, it is smart choice depending on several criterias like if /boot is on own
partition or if partition is logical, then it install to extended. What we can
do is to add probably kernel name for it, but then it can be still quite long
as for e.g. logical partitions, it can be multiple physical partitions.