MiSTer FPGA Forum

I've got two HDFs, exact same size but only one of them generates the warning.
The HDF in question seems to work just fine, but perhaps something can go wrong in the future. How can I fix these illegal CHS values?

Check with HDToolBox, you will probably find that the two files have different layouts in RDB, that is different values for Cylinders, Heads and blocks per cylinder etc - solution is read disk layout and write it back to RDB, but that also means repartition, reformat, reinstall etc.

(It doesn't help that HDToolBox from the different OS releases disagree on disk layouts, that different UAE variants and minimig implementations also disagree)