Hello!

> >   I don't know what "hide a partition" means exactly. Is there any
> > document or any sample source code?
> 
> >From what I've heard, hiding a partition means setting its partitiontype
> to zero. This seems a bit dangerous, because you have to store the
> original type-id somewhere. I'm not sure about this, though. 

If I rememer correctly, hiding a partition means adding 0x10 to its
partition type code. This assumes that the partition type code is below
0x10.

For example, DOS partition 0x06 becomes 0x16. HPFS partition 0x07 becomes
0x17. Un-hiding a partition means subtracting 0x10 provided that the type
code is from 0x10 to 0x1f

Pavel Roskin

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