Comment 6 for bug 1553147

Sorry, I'm unable to verify or test for a week, but IIRC setting it as parameter (or using the alias keymap=fi) did actually change the layout in the installer console.

However the changes were not saved in the target system in /etc/default/keyboard as XKBLAYOUT="fi". I also tried setting these items in preseed without success:

{d-i,keyboard-configuration} keyboard-configuration/{layout,layoutcode,xkb-keymap,variant}