I have used instructions at https://arm-files.devuan.org/README.txt
install Beowulf 3.1.0 on a rpi2. The image apparently booted ok but I
am not able to login. The instructions for login (page 2) on rpi appear
to say username pi, password board. However, this is not accepted. I
have also tried devuan, toor which is also not accepted. So, does
anyone know what what login to use?