On Thu, Jul 15, 2010 at 12:05 -0400, H.S. wrote:
>
> I have a couple of hard disks in a computer which is to be recycled. I
> want the windows OS in it to remain functional, but I want to be sure
> that I have deleted all my personal files securely (never used the OS
> that much anyway and there is hardly any important info in its registry
> or browser). There are a number of documents that were deleted in
> Windows the usual way (Shift+del) and I just want to make them
> unrecoverable.
>
> Its first and second partitions (sdc1 and sdc2) are vfat. I was thinking
> of mounting these on /mnt/scd1 (and scd2) and then doing:
> # dd if=/dev/zero > /mnt/sdc1/zeros.bin; rm -f /mnt/sdc1/zeros.bin
>
> and the same for scd2. The idea is fill the partition with new data thus
> overwriting any deleted files' data that is lying around. Would that be
> adequate? The objective is just to prevent a casual recovery, reading
> and copying of the data by a future user, so I don't need multiple
> over-writes.
Take a look at "secure-delete" which contains "sfill" which can be used
to fill the available free space on a hd with random (and specifically
crafted) data to ensure that data recovery is impossible. I am not sure
if it works with vfat though :-\
good luck
Wolodja
--
.''`. Wolodja Wentland <wentland@cl.uni-heidelberg.de>
: :' :
`. `'` 4096R/CAF14EFC
`- 081C B7CD FF04 2BA9 94EA 36B2 8B7F 7D30 CAF1 4EFC
Attachment:
signature.asc
Description: Digital signature