the images are assuming a us keyboard and are setup for english, so one should configure it as needed after the first boot using the /scripts/initial-setup.sh script - this will setup the keyboard, timezone and locale. sometimes the keyboard setup is skipped, then it can be adjusted in the file /etc/default/keyboard.

some commands to set the initial keyboard mapping in an x terminal to run anything with the proper keyboard layout before everything is setup properly:

english: setxkbmap us french: setxkbmap fr german: setxkbmap de italian: setxkbmap it portuguese: setxkbmap pt polish: setxkbmap pl russian: setxkbmap ru spanish: setxkbmap es ...

you might be interested in running /scripts/extend-rootfs.sh which will extend the rootfs to the end of the disk

additional setup instructions can be found here