What was done:

- blacklist pcspkr
- /etc/locale.gen with four locales
- /etc/default/extlinux with \nserial... for serial output for extlinux
- BLANK_DPMS, BLANK_TIME, POWERDOWN_TIME commented out in /etc/kbd/config.
- /etc/default/hwclock: clock access = no
- default root login for ttyS0 and tty1 consoles.