Otherwise the appropriate MKxxx=no won't be defined .
- Install boot.atari in both / and /usr/mdec. It looks good to have a spare copy soemwhere... - Add '/boot.ata' as a last resort bootname. All per discussion with Simon Burge, Matthew Green and Soren S. Jorvang.
from Matthew Green. It would still allow multi-platform boots. Thus, the second level loader first tries /boot.atari and uses /boot as a fallback.