Martin Held <marth@macbsd.net> writes:

> ld -N -Ttext 0x100000 -e ___start -S -o netbsd ${SYSTEM_OBJ} vers.0
> aed.o: In function 'aed_dokeyupdown':
> aed.o (. text+0x4f2): undefined reference to 'keyboard'
> aed.o (. text+0x4fa): undefined reference to 'keyboard'

Could you please provide your kernel config file?

Did you check that you have akbd in your config file?

regards,
 Aymeric