fsck on FAT32 filesystem?

[Bruce Cran]

On 19/07/2012 09:15, Wojciech Puchar wrote:
> no. for modern hard drives it was already proved that
>
> dd if=/dev/zero of=/dev/disk bs=1m
>
> is enough to make data unreadable.
>
> for very old drives it may not

How about data stored in remapped sectors, or any flash cache?
The Secure Erase command 
(https://ata.wiki.kernel.org/index.php/ATA_Secure_Erase) may clear all 
that data too, but without any guarantees it's better to destroy the 
disk than risk leaving classified data on it.

-- 
Bruce Cran