Bug#219333: cdebconf: Letter u grave not displayed....
> After finding this, I noticed that this letter is never displayed
> wherever it appears in d-i templates.
I suspect that this is because that letter is missing in the templates
used on the boot floppy, and because of this is missing in the reduced
font used by bterm.
The proper fix for this is to get bterm to reload the font when the
complete font is loaded from package bterm-unifont.
If this is the case, the bug could be assigned to bogl-bterm, with
suggestions to implement font reloading.
A workaround might be to make sure the required letters are mentioned
on the udebs used on the first floppy. :)