Re: Weird bug -- non-integral sector number

[Franc Zabkar]

I would suggest that ddrescue should warn the user that their chosen 
sector size is stupid.


On 27/08/2023 12:40 am, Antonio Diaz Diaz wrote:
> Franc Zabkar wrote:
> > The last two lines of the mapfile contain three numeric values which
> > don't make sense. That is, the numbers 0x0EBE8700, 0x1CD5A9A8700 and
> > 0x464757900 are not integer multiples of the sector size, 0x200.
>
> Thank you for reporting this.
>
> Note that the values above do make sense. They are multiples 0x100, a 
> valid value of sector size. Moreover, the positions and sizes of the 
> mapfile blocks are not required to be multiples of the sector size.
>
> Note also that the 'current_pos' (0x142D3A80000) is in the middle of the 
> mapfile, indicating that ddrescue was already run on this mapfile before.
>
> Maybe the user ran ddrescue previously with a --sector-size of 0x100.
>
> Best regards,
> Antonio.