Replying to myself with follow-up questions: Berend Tober wrote: > I found this simple suggestion via Googling on techniques for > scrubbing hard drives prior to disposal: > dd if=/dev/random of=/dev/hdb && dd if=/dev/zero of=/dev/hdb Would this be run with hdb not mounted? > (repeated in a for-do loop several times) > This seems simple and inexpensive, but I was wondering about a couple > things. Specifically: > How does it know how much data to write or when to stop? > Anyone have experience or comments regarding the effectiveness of this > technique? > I imagine it could require some time, too. > I also read a little about the standard shred utility, but there > seemed to be some cavea related to ext3 file systems. And what about, alternatively, badblocks -w /dev/hdb ? Regards
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