A quick "Quest for the 48bit LBA issue" update:
Having tried several tips, which -unfortunatelly- did not work on my 4100s Bios/HW/SW combination, I was left with a last chance:
Trying the older v3 4 805.
Indeed, I tried to upgrade the appliance using the v3 sup file, but I kept receiving the message "this file is not a valid upgrade for the server". Perhaps Snap decided not to let us go back, or I am doing something terribly wrong
Does anybody what exactly is the issue, and if there is a procedure to achieve a downgrade to v3?