While using DilOS the installer ask for a keymap but it is not configured. Here is how to change the keymap.

Getting a list of supported keymaps:

kbd -s

Changing the keymap: (OpenIndiana, DilOS, others not tested)

svccfg -s keymap:default setprop keymap/layout=Belgian
svcadm refresh keymap
svcadm restart keymap

Voila, your keymap is changed!