> Are you saying you are booting MorphOS on your Sam440 system?

As I understand it, he removed the internal SATA HDD from his Sam440, put it in a USB enclosure, connected the enclosure to a USB port of his Pegasos II, booted MorphOS from the internal drive, made the described changes to the external HDD from within MorphOS HDConfig, removed the enclosure from the Pegasos II, removed the HDD from the enclosure, put the HDD into his Sam440 and attempted to boot OS4 from it, which failed with an RDB error (but which, in theory, should have worked as he just created an additional partition in the unused space without touching the existing OS4 ones).