I made a bootable CD from SuperRescue ( ftp://kernel.org/pub/dist/superrescue/v2 )
many months ago. I boot from it, execute,


  dd  if=/dev/zero   of=/dev/sda   bs=1M

and then go get a cup of coffee.  I imagine Knoppix could do the same thing.

(Note -- /dev/sda is a SCSI drive specifier, you'll probably need to use /dev/hdx
where x is a, b, c, or d.)




Richard Steffens wrote:

A friend of mine got a new computer and will be giving her old one to another friend of hers. She wants to make sure that all her old data is deleted, and bought a program (it's a Win98 machine) and tried to do it herself. (I don't know which tool she bought.) Since she couldn't get it to work, she called me.

Since this machine will be starting over from scratch, wouldn't it be sufficient for most purposes to delete the partition(s) on the drive and do a fresh install, which would include formatting? I know that someone with sophisticated equipment could probably get old data from that drive even after repartitioning and formatting, but the average user probably wouldn't even know to look.

Am I right, or am I missing something important?


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